I see some people complaining about what's being talked about, but as long as it's not insults, which some of it clearly is, the discussion itself is on topic, it's discussion about the creators work and in situations and in moments like these where you get calls to "shut it down" it's from people who just want to see endless praise.
To give a point of the use of these things, I have never played Milfy City, now if you go into the thread you will complaints about how lazy the dev is, good, if discussion about that was censored, you may get the wrong impression from die hard fans.
Jackerman has fans from Mothers Warmth, by far his most popular video, so for new fans or potential customers, discussions like this can make them aware that they could get content they do not like down the line whereas if had just been praise, they get dragged along for something they don't want.