If this isnt the appropriate means of suggestion I apologize and will do the correct procedure, I think in the rp forums edits should be allowed without time restriction(much like in the ooc forum), and I mean all around so I don't have to run to a mod every time i see a mistake or some ingrate tries to mess with my thread like today(the DM should be able to delete a post in their thread). to prevent cheating allow viewing of the post pre-edit.
Unlimited edit time is something we could potentially work with, although it's generally not seen as a good idea in the RPF proper since the format requires a certain amount of post/response. If you'd like to discuss it further with the rest of the RPF community I'd recommend a Resource discussion. I can say now that there is no way to allow the users at large to view pre-edit posts. As for spam in your own thread, there is no way with the current software for a GM to have permission to prune posts in their own thread. You should get ahold of either myself or Penguinator when something like that happens (Yes, I did see your report, and yes, your thread has been cleaned up), in much the same way you would contact a moderator in any other part of the forum for that sort of thing.