No, I think people should be treated roughly in the same way they'd expect to be treated in meatspace. I know I don't always configure a server correctly the first time, but if my lead called me a fucking dipshit and a waste of time, I'd go find another job real damned quick.

There's a certain level of banter and sarcasm allowed between friends and known colleagues, but strangers don't have that luxury, or shouldn't.