Comment by snowfarthing

I'm not entirely sure if smugness is the entire reason for doing it -- I suspect that for many of us (particularly autistics like me) there's a certain amount "But someone's wrong on the internet!" syndrome going on.

Some of us just can't work up the energy to answer a question, but if we see something wrong, it doesn't sit well with us, and we have to correct it.

And yes, sometimes when I see a question I can answer, it gives me the energy to answer it ... but not always ...