I've been asking For an Edit Post button as long as I've been here... Every message board worth it's salt has at least THAT basic feature...

"Preview"
Sometimes errors still get past...

"any semblance to real life conversation"
But this ISN'T real conversation... d'uh....

There would undoubtedly be wankers who felt the need to go back and just always change their initial post... they wouldn't be worth the time of day...