Wouldn't you have a choice between continuing to get paid or continuing to comment? And what if I already knew your decision would be to stop getting paid and quit HN but I still needed you to continue being on HN because your presence here was valuable to me? Would that not mean that I'm paying you, but I can't force you to do anything without harming myself much more than you?
I could go my own way and comment for free (as I already do) and then I would be able to do whatever I wanted.
But as long as I am funded by you, yes I should do what you ask of me.