Seriously, these shouters are going every second. I'd say autoban, but I'm not sure a plain-old troll should be banned for doing something like this, but these gilsellers are shouting the same basic thing agand and again and again and again.
Yeah, if SE implemented this, they'd slow down shouting, but at least it would catch some (and trolls) every now and then. Honestly, even more than 5 times in a minute should be enough.