And the horrors of parsers and elitism rear their ugly heads once more.

The best thing you can do is just ignore those people. All they care about is everyone doing the absolute possible best no matter what and won't tolerate anything less than perfection. It's completely asinine and just a sad thing that unfortunately we have to deal with from time to time. I won't lie, I get angry too when people are dragging their feet, but you can't just flip out on everyone over every little thing. Gotta take it on a case by case basis and if you can, not be a total jerk unless the person's really asking for it (i.e. trolling or attempting content that they are clearly undergeared for and even in that case, you should just advise them as such try to avoid berrating them too hard.)

We're all human though, we say/do stupid things in the heat of the moment. And then some people are just natural born jerks :/