In that case you also probably think that everyone on HN who reads your post owes you compensation for your opinion on this matter, even though it was unasked f

In that case you also probably think that everyone on HN who reads your post owes you compensation for your opinion on this matter, even though it was unasked for, you provided it for -your- own benefit, no terms were set and agreed to, and this isn't a context that normally is paid for. In short, no.