Gold Meritorious Patron
I've changed it to one day. I agree 30 minutes is restrictive but there are good reasons why it was set that way. I've relaxed it to 24 hours.
I don't understand why you think the board would be more "alive" if the editing were indefinite. Why would that make any difference?
It's actually quite difficult to put a rule in that limits the editing to 5 posts per day etc. It's not built into the software.
I've seen on more than one occasion here (and elsewhere) where creative retrospective editing has completely changed a poster's history. It makes things very confusing. My policy is "if you said it - you said it. If you shouldn't have said it be more careful next time". You can't take back verbal communications & pretend they didn't happen. These are "live" off the cuff communications, not generally essays or mini theses. The exception to this rule is if someone inadvertently gave up something that could destroy their anonymity or come back to really hurt them at a later date. We do edit posts for people in those circumstances.
Comments to blogs & news stories are generally completely non-editable. At least you have a chance here to fix an error or change your mind.
I think we should get a Breathalyzer app. You blow into your microphone, and if it detects you're over the limit when posting--it holds the post for 24 hours and then gives you the opportunity to edit or delete.
Then again, I've read some pretty awesome posts that seem to have been created under the influence