I know I've have several of the core offenders on the pro side in this completely ignore my polite comments and advice. I think some folks have learned the lesson the hard way that, much like my kids, sometimes you have to shout to get someone attention. For many of us, POC especially, white folks who are full of their own self superiority and importance treat us as if we were invisible when they want to, without much effort. I wish it wasn't that way, I really do.