Is it possible to delete a post? for example if u posted something somewhere like fanfiction and you don't want it on there anymore because people just critsize it, then can you delete it, if so then how?

You could press EDIT button and delete it...

Otherwise, you'll have to go get a Mod to completely delete it.

The admin hasn't made it possible to delete posts for normal members.
Only mods and admin can do that.

But as Lolita said; Edit it, and put some really twitty sentence to replace the old post.

YUSH!
-Thumbs up.-