</font><font color="blue" class="small">( I wish they would extend the edit time to at least 48 hours. Or, make it indefinite. It might save on the number of messages posted if the original poster could go back and change things later. )</font>
The problem with editing later is that replies are generated from your post. Editing would change the post, thereby changing the "inspiration" for the reply.
Rather than editing over a longer time period, how about adding addendums (by the original writer) to posts? These addendums could have a time stamp, but would not change the actual post that inspired replies.
As to making extra work for the moderators, don't worry - that's what they get paid the big bucks for! /forums/images/graemlins/wink.gif