You find a mistake ... Point it out ... Ridicule him ... And then feel good about just how much better you are than him
Now, of course, you've gotta point out that it's all for the good of others, so they don't get led astray. And you gotta try to show that you're smarter, you know, cut and paste a bunch of stuff.
But in the end, you're justified in being all outraged and stuff ... Because you're saved and he's not, except you never say that. Too obvious.
It's all about who's in and who's out. And who's smarter and who's dumber. It's a competition.
Gets tiresome and boring doesn't it?