It shows they are getting something off their chests and are also adult enough to realize they screwed up when they edit the bad things out. Don't we all have that get mad thing in us?! I use it to correct typo's too. lol Or make things clearer when it hits me that something I thought sounded so clear looks muddled up after I reread the post.
Vote- it stays on.
Second Vote- make a clear rules page for posting and insert it in between the register button and register page so we have to read it.
Third vote- Turn that darn cookie checker and reinstaller on! Lost the cookie on thi system somehow!
