No more post-editing after first reply
 

Is it possible to set up the board like this:
As long as nobody has replied to your post, you can edit it as long as you like, but When someone has already replied, no further editing is possible.

Is there some hack for this?

I don't recall ever seeing a hack like that. Have you searched the Modifications forums?

hum, there is no hack for that, but i'd be pleased to make one for that, as i find the idea to be a spike of genious logic.. lol