Reddit is a strange place... a nexus of everything from the most adorable animal pictures and videos to a meeting-place for the alt-right, actual Nazis, and conspiracy idiots.
The way they present is is a list of topics taken from a variety of groups based on how much upvoting they've had. Which means if you don't check you don't know what sub-reddit you may have fallen into when you open one up. I saw one outraged post about how 22% of police shootings were blacks, and how this was clearly racist based on it being out of proportion to their numbers. Naturally I replied stating - very politely - that if you take into account that the police are likely to be shooting criminals or those resisting arrest, and that blacks commit a lot more than 22% of robberies,
**** and murders, it really isn't an indication of racism.
I was banned immediately.
The subreddit in question was for blacks, and apparently one of their own special rules is that you cannot quote police or FBI statistics on black crime. I hadn't actually quoted statistics, but that didn't seem to matter. I still see continuing feeds from them on the 'popular' list, screaming about police abuse, but <shrug> they clearly only want an echo chamber so they can whine about how abused they are. Not that different from the incels and alt-right in that regard, really.