Paris: Having more time to think through a post or being able to edit it anytime, even the next day, like you can on Facebook ?
(I'm repeating what Phizzy alluded to):
Sounds exactly like what WT does. WT wants to revise and/or delete it's own history when the reality of it's absurdity sets in, then, rather than man-up and acknowledge, "yes, we said that", they choose to delete it altogether and pretend it never existed. Well, thinking people can see right through that tactic and recognize it for what it is: dishonest Revisionism. You may rant ad nauseum about WT, Paris, but it seems you still retain admiration for some of WT's methodologies that suit your needs.
The only reason I can see for a person wanting this feature added is for the same purpose: when you begin to feel the heat for the words you write, you can go back, delete or edit them, then claim you never said it and everyone got it all wrong.
"Having more time to think through a post"- Try doing this before you post. It makes all the difference in the world.
I'm with Phizzy on this:
Again I say, be careful what you write, then let it stand, even if it does make you look silly later.