It's the Scunthorpe problem all over again. It's like Youtube flagging that chess channel for hate speech[0] (perhaps because words like "black", "white" and "attack" were used a lot). It will annoy people who're accidentally caught by the filter, and people who want to get past it will figure out a way anyway (by look-alike character substitution or whatever). I think it's the wrong approach to that problem.

[0]: https://news.ycombinator.com/item?id=27914261