My reply-too-late:
While that is a little hyperbolic, there's definitely a "kid gloves" approach you have to take in a lot of online discussions.
E.g. there was an article on burnout that popped up on HN[0] recently where the author made sure to apologize for being a "privileged white chick" early on. You can't just talk about your problem with burnout and how you handled it, you have to virtue signal about issues that might not even be related first.
I've seen discussions on Twitter get swamped with "what are you doing in our conversation?" replies that drew the line on racial boundaries, when the issues at hand weren't even exclusive to race.