I am using the QA in social-blog format. From my perspective, I can offer these ideas as plugin.
1) Betting plugin
- Admins post a bet on something. (Ex: for upcoming football game lets say Real Madrid vs Barcelona).
And users can bet on this with their q2a points.
Example: Admin determines rates (cost and price), lets say,
win for Real Madrid (100 points)
win for Barcelona (80 points)
draw (90 points)
Cost for lose = 50 points
-Users can bet with 50 points on this three options. If they win they get price points related.
2) Send/Recieve Points plugin
- Users can send a part of their points to other users.
For example: User A has 500 points. User B has 100 points.
The A sends 100 points to B. Then A will have 400 points, B will have 200 points.
3) Purchase points plugin
- Admin sets few point packages and their prices (500 points for $7.5, 1000 points for $10 etc)
- Users can purchase it by PayPal
4) Promoted Posts Plugin
- Admins can promote questions for certain time (like in twitter TT list).
- Admins create promotion packages and make it purchasable by users. Ex: Promotion for 12 hours ($5), for 24 hours ($7.5)
- Users can purchase promotion packages with PayPal.
5) Follower/Following Plugin
- Users can follow others, and can be followed by others.
- Admin sets can enable/disable Follower Zone page.
- If Follower Zone page is enabled, the sub nav page under questions will appear as Follower Zone where only questions posted by following users.
6) Questions of the Day/Week in the Past Plugin
- The plugin filters questions posted on the same day in the past years.
- Users can select years.
For example: today is 31/07/2018. The user A selects 2017 in the filter and only question that are created on 31/07/2017 are shown. If the user selects 2016, then questions posted on 31/07/2016 will be displayed.
7) Marketplace Plugin
- This is a page plugin, it does not post questions.
- Users can add listings with 4 inputs. Name of Product, Price, Explanation, Contact.
8) Job Posting Plugin (like in stackoverflow - https://stackoverflow.com/jobs)
- This is a page plugin, it does not post questions.
- Only enterprise users (verified) can post jobs vacancies.
9) Hot Tags
- In stackoverflow tags page (https://stackoverflow.com/tags) at the bottom of every tag it shows how many time this tag is used today and this week separately.
- With same logic a widget Hot Tags can be developed. It will show only hot tags of the day or week.
- Current Tag cloud shows how many time the tag used since the site has born.
10) Complain/Block Plugin
- Logic is similar with Facebook/Twitter blocking/complaining.
The user A can complaing user B, if it sends bad/rude messages or posts on wall.
And admin can give penalty points for bad behaviour.
Or User A can directly block the user B, so that B cannot inteact with A anymore.
Currently in qa at http://www.question2answer.org/qa/account there are enable/disable ticks for privage messages and wall posts. This can be impleneted there, for example, when private messages enabled a box below will appear where user can write userids or username for exclusion.