Title might be a bit vague because what I wanted to call this thread was too long for the title box.
I think it would be neat if we could edit our forum posts even if they've been replied to, in case we just can't live with that typo being there forever. Would also be useful in something like a story thread where there's a glossary or something (see: Turnip's thread), as people can still reply to that glossary post and ask questions about it while still allowing the author to edit it to add more later. Sites like Reddit (which has the closest layout to our forums, that is every reply starting its own mini thread) and many other forums of different layouts already have this capability. In addition, the mods and admins can edit posts no matter how many times it's been replied to, so we know that it's possible.
Just something I think would be neat, but definitely don't need.