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Yes there is, it’s called a WYSISYG editor. WordPress has one, I think (hope) bbPress will get one too. I already have a ticket about this for version 1.0 of bbPress, so time will tell if this gets implemented. If not, someone will (I will do it when I have time for it. I already have a WYSIWYG editor laying around that should be easy te implement into bbPress) make a plugin for this to add a very simple/basic WYSIWYG editor to bbPress.