I avoid SO too. However, I didn't understand this: [...] There is no pass by reference, so I’m not sure where you got that. You’re simply passing the value, which is a copy and not going to change the original. ...is parading that they’re stupid and wrong, while beating your chest about how much smarter you are. [...] It sounds neutrally worded to me. Can somebody here point out what part of it is considered hostile…
Yes, that comment could just be trying to be helpful / clarifying.
I think it's not much of a stretch to say the upvotes incentivise the "popularity seeking" behaviour over "information sharing" behaviour.