I don’t assume anything about validity. My point is that a diatribe about discrimination, or reverse discrimination, or sexism, or men’s rights, or pick-up artists, or about SJWs flooding HN, or anything else that is wholly and complete divorced from the post itself may or may not have some basis in the author’s experience, but it’s still a recipe for HN going down the tubes.
My past experience grounded in using HN since it was founded is that with certain hot-button topics (racism, sexism, IQ tests, codes of conduct, &c.) devolve very quickly into threads that are indistinguishable from one another, with people staking out entrenched positions and virtually cutting and pasting their comments from one discussion into another.
The only way to keep a high signal-to-noise ratio is to either kill all posts that touch on hot-button topics, or to be disciplined about staying on-topic about the post being discussed.
The degree to which my, yours, or anybody else’s knee-jerk reactions are based in reality or fantasy is orthogonal to the problem of hot-button topics producing “generic" discussions.
Summary: My opinion is that it’s bad for HN if discussions about posts devolve into generic discussions that are indistinguishable from each other.