This popped into my mind as I was thinking of a thread I'd recently posted. It's still just a little baby idea, it hasn't grown up yet... :P
When posting a thread or posting on a thread, there could be a bar under Additional Options where you can type in names, or names separated by a comma. Names of people that you allow to edit your post (as well as mods, of course). For example, if you're submitting a thread about your guild, you could type in the name(s) of your Co GM(s) so they can edit the thread as well. For another example, you might have had an adventure with another forum user that you'd like to post. You might want to let them be able to edit your post in case you've missed something they'd like to add, or something else.
Now I need
your feedback.