Specials really do bring all the retards to the yard, but you've got to remember just how stupid the playerbase is to begin with. Not even considering what I see during specials, I have seen teams lemming Lakeview's valley on encounter more than once. During the countdown people will point out that this is encounter, and they will still do it because they are just that fucking stupid. I've also seen 8-9 T10s charge down some flank, get one kill, all die, and do it all inside of three minutes. And then there's the jokesters in TOG platoons, the casual TKer, and the m37 with his GWP buddy...
I really don't know how anyone good can tolerate enough of this game to get several T10s and put hours and hours into practice and clan wars. I just play for fun (while winning 56% of the time), and I mostly avoid specials.