> You can write stuff about these companies anywhere on HN
False, you cannot comment on a YC hiring post.
Either all posts are treated the same, or they're not. All we are discussing here is the ability to comment, I'm not saying I need a filter toggle, though I'd happily use one.
These are job ads, you can't go off on tangents in people's job ads on Who's Hiring threads either. All posts are not treated the same and this is one of the biggest not-same type of post on HN. Topicality is pretty important to HN threads. There's really no shortage of ways to be both on topic and say things about more or less any company, YC or not, on HN.