And yet the topic comes up repeatedly every time there is the slightest possible way to bring it up, even if it's completely unrelated to the article, like the grandparent's post. The original article had no mention of female prize or anything related to discrimination.

Edit: reduced hyperbole

I don't really like clicking on the comments for an article about the economics of a chess tournament to find somebody whining about a prize for women players that isn't even mentioned in that article. It's just uncouth. Even if such prizes are a bad idea, there's not worth derailing the conversation, and it's rude to track down some nitpicky complaint to jump on.

Why should there be a section for people who want to talk about the aspects you want to talk about, but not a section for stuff I and others want to talk about?

I understand you might not like to click on a chess article to find something else being discussed. Well, that happens to all of us in different ways. The way I deal with it is, I simply skip the comment branches that I don't care for.