It has been happening for years, on HN too. Astroturfing used to be extremely obvious and you could quickly verify by looking at someone's comment history. No l

It has been happening for years, on HN too. Astroturfing used to be extremely obvious and you could quickly verify by looking at someone's comment history. No longer the case I'm afraid, since accounts are either bought outright or pre-processed by intermediaries to have varied histories.