I guess it quenches flames, too
You know the omigodsecond - that infinitesimal time that elapses between pressing the "post" key and realising that you either stuffed up the technical details, mangled the URL, or worse, called the other guy a stinking scumbag to his face.
Perhaps we DO need some hurdles to slow down our rush to publish AND perish!
(And maybe I could drop down to initials like some others do, or program a hotkey...)