PrivateBin is a self-hosted and open-source pastebin software.
PrivateBin is a text hosting service that deletes pasted text, after a visit.
It can be configured to not delete the paste after first view, at which point there is an option of commenting and replying to the paste, like in a forum.
[2] All pastes on PrivateBin are encrypted with a password.
[5] PrivateBin was forked from ZeroBin.