DawPi

This plugin allows you to choose forums where users without 'reply' permissions will be able to reply to their own topics only. See screenshots.

With this application you can change the standard "follow" user behaviour. Each followed member must approve someone request. You can  log it, approve, reject via ACP.
You can also manage profile privacy. You can set default mode for all profiles and allow/disallow choose it by each member with customizable options for it! It has been discused and many members wants it.
Profile privacy options:
profile is open for all profile is open for registered users only profile is open for (approved) followers only profile closed for all (except admins) It's available as setting field, so that the user can choose his preference. And other setting in ACP where default for new users can be set. Profile privacy feature was sponsored by @Sonya*.

With this plugin you can restore searching in the archived posts.
Important: After install please use rebuild search index tool in the ACP. It will bring back removed archived items in the search content.

With this mod you can disable indexing by spider crawlers for specific topic. It's important for a private topics, however must be publicly accessible to the forum community.

This app allows you to run elections on your board, good for members who wan't to run for staff positions etc. 
 
How it works
Admin adds an Organization. Admin then adds the Positions. Admin then adds the Ballot. Admin then adds positions for those Ballot. Admin then adds Nominees for those Positions. Then the Voters vote.

With this plugin you can limit the number of posts displayed in the topic view for guests. This plugin will also hide the posts on topic hover on the forum view.

With this plugin you can limit how many topics user will be able to add in specific forum. Two limit modes - single (per forum) or all forums together.

This plugin will remove all existing and newly added EXIF data to Gallery images.

With this plugin you can remove all EXIF data from uploading attachments.
Note:
No settings. Works globally on entire community. No removing existing attachments files apply. Images only.

With this plugin you may allowed specified groups of members to delete their accounts. Users need to enter valid password. Once they do, their account will be deleted.
You may also configure what to do with the member's content.

With this mod you can inform your members about taken action on their content. For example: topic locked, hidden, unhidden, deleted, moved, post approved etc.

This application will add a new tab to the member profile with a list of all topics with the ability to filter them by specified forums in the ACP with custom names. It's useful if original forum has long name or you want to add own name to the filter.
It's useful for a hobby, tech, auto or any other board with a organized content.

This modification allows Admins to change group of search bots from Guests to another member group.
It's do not affect logged in members (even if they change the useragent with a switcher or anything else). Works only for a guests recognized as a spider crawlers.

With this mod you can allow your members to view moderators logs on the front page.
Features:
enable/disable, choose groups which will be able to see the logs, choose groups which will be able to see the IP's, optional allow moderators access even if they won't in the allowed groups, live sorting, live searching.

With this plugin you can filter posts content with specified badwords. You can use the '%' as a boundary sign to parse only whole words or part of them.
You can specify prefix and suffix to give more light on the badword or display only few first chars.
You can allow ro disallow members to enable/disable this filter.

This plugin will display the search results CSE Google only if the user searches in 'all' content on the board. Otherwise the built in search engine will be used.
Development of this plugin was supported by the eGullet Society for Culinary Arts & Letters.

With this plugin you will be able to display forum staff assigned to viewing forum by member. You may select only some groups which will be able to see the staff list and select staff type to display - members and groups.
It's a widget type of plugin.

Extension of this mod: (DP42) Guest View Limits.
It's for limiting (or not) every group on the board (except guests). Every group has own settings.

Limit page views for guests in specified amount of time.
Features:
bots can explore whole board without limits, enable/disable mod, exclude urls, exclude forums and clubs, set visit limit number and time, set error message, limit topics (or no).

This mod counting all words (at least two chars per word) belonging to a topic.
When the topic is posted:
if more than XXX words: INDEX if less than XXX words: NOINDEX After it was posted, if the topic was marked NOINDEX (and only if, it doesn't count again for already INDEX topics), it counts again when somebody replies to it, then same thing:
if more than XXX words: INDEX if not, no change  Working fine for exists topics too.

Commerce will generate a licence key upon a purchase whereas Single Use License Keys app can pre-generate a key "ready to use" either with or without a sale item.
DETAIL:
A new product (or editing an existing one) via Commerce app and choose to use the Single Use License Keys licence method. The next step is to view the Single Use License Keys application itself and select 'Import Keys' and the product. You then add the keys (copy/paste recommended) and click to complete. Single Use License Keys will then adjust the stock levels to ensure that a client cannot purchase the product if there are no licence keys available for it.
BRIEF:
The overview page in the Single Use License Keys application will let you see the total number of keys that have been already issued and any remaining (free) keys. You can also from this page choose a product and examine its key status too.

With this plugin you can easily add a watermark to every uploaded image via upload form.
FAQ - read before purchase
It works only for a newly uploaded images? Yes.  
It works for already uploaded images? No.  
Watermark could be applied into old images (already saved)? No.  
Would you be so kind and add new options? Yes and no. It depends what it would be.  
Watermark can be added anywhere on the image? No. It would be added only to specified most common areas of the image (see screenshot for more details).  
Watermark would be added onto thumb also? Yes.  
If you have any other questions please ask BEFORE purchase.

With this plugin you can easily clean any member from:
started private conversations - they will be deleted from database, replies in the private conversations (started by someone else), both these tools are usefull to remove spam, no wanted content etc. unfollow them from all followed content with ability to refollow it by them in the settings. this tool is usefull to prevent receiving a bouncer e-mails (for example if the mailbox isn't exists anymore or it's full). Then you could send message to this member with request to update his e-mail and prevent increasing size of e-mails logs in the ACP.

Description:
The modification allows you to charge for the possibility of adding topics in selected forum sections. It is a useful tool on forums with an exchange or other departments where adding new topics is checked and limited.
Modification gives you the opportunity to earn money by adding new topics in selected forums.
The purchase is made through the Commerce application - it is required for the correct operation of this application.
You have the option of creating packages with different limits for new topics or creating one package (its name cannot contain a single number) so that the user can add topics for one year. In the absence of an option without a number in the name, it will be possible to purchase only limited packages.
As I mentioned before - the Commerce application is necessary for proper operation.
 
Usage:
Create a new product field (Radio type), add packages there (each name must contain one number which will be the limit of new topics). Then, assign the added field to the appropriate package from the store and select the prices for individual packages.

With this handy application you can review all your attachments on board, sort them or filter.