I think it would be great to be able to edit posts even after they got several replies. Has this never been allowed here, or was it allowed and people abused it? I would like to be able to add e.g. "This calculation is wrong, but I think I got it right in #22" or "Post #51 answered this question completely" to an old post. It would probably be best if we could just add stuff to old posts, but I guess vBulletin doesn't have that feature. Are you guys completely against allowing edits after the first hour?