Is there a plugin for…

Hi everyone, I was wondering if anyone has come across a plugin that allows anonymous posting.

Basically I have a buddypress site with members and I want to have a “confessions” page.

So members go onto that page, there is a huge text box area waiting for them and they can write whatever they want.

Then it will appear as a post, similar to the yahoo answers network.

Or they post and it goes through my wordpress admin dashboard and all I have to do is publish it.

So has anyone heard of a plugin? Ty