is it possible to do this:
- User need to register and can only see comments written by himself or by an admin. Admins can see all comments
- create a profile page that user can see all their comments related to all posts
Sure it is, it is open source so you can hack it anyway you like as long as you know how to code ;)
There are three ways I see to do this:
The 3rd option is bad as in not recommended as that makes it harder to update/upgrade in the future.
Obviously 2 and 3 means that you need to mess with the code or hire someone to do it.