Do people on Quora notice when they accidentally comment on the answer instead of the question?

Myself, I think it really is that people expect everyone to be notified about their comments, when they are new to Quora.

Remember that, with no onboarding, it takes a little while for it to become apparent who gets notified of anything, to begin with. It took me a couple of weeks to realise that my comments three levels down would not be read by the original commenter.