my experience is that users edited their posts without mentioning what was edited ... thus some next posts were referring to something that was not visible anymore
however, if you feel that enabling editing would not be abused, I might reconsider my attitude ... meanwhile, I could allow the VIP group (bonanova, writersblock, unreality + of course, martini already can edit anything since he is moderator) ... you can pm me or start a new topic to vote for edit or no edit