We take this problem seriously and have years of experience with it. In our experience, "very clearly gamed" nearly always reduces to "seems to me, based on personal biases and incomplete information". When abuse really is going on, that's extremely important, but it is certainly fewer than 10%, probably fewer than 5%, and maybe fewer than 1% of the times we hear this. So we actually have two problems, unfortunately intertwined: (1) abuse and (2) this tendency to imagine it.

For this reason, please don't post unsubstantive allegations to HN. If you have evidence, or significant suspicious, email them to hn@ycombinator.com instead.