To be fair the parent commenter's post doesn't claim that this process is even remotely efficient, only that it's reality and they find it easy to game.
Also more meta-level commentary, I find the word "should" interesting, as in general I have found that comments on HN which contain this word reflect a level of frustration that X is X instead of Y, because "X should be Y". Someone else may come along and say "X should be Z", and all the meanwhile, X is X.