I think someone read my comment and decided it had no place on hn. Downvoting makes the comment less visible, ranking it lower in the page, and eventually invis

I think someone read my comment and decided it had no place on hn. Downvoting makes the comment less visible, ranking it lower in the page, and eventually invisible to anyone who hasn't turned show dead on. Downvotes also take away karma, potentially losing privileges and eventually being banned if everyone did as you described.