I know for a fact that it happens. Certainly they would stop it if they knew about it, but they don’t police this stuff like you might think. They rely on their users to self-report for the most part. [1]
“ On April 23, 2020 at 1:55 p.m., the Marysville Police received a tip that child pornography had been uploaded while using a discord online service.”
There are groups like this all over the place. I know who this person is.
“A discord online service” is Discord.
Also kind of interesting in writing here you can see some local papers are just way out of touch with the tech community.
[1] https://www.unioncountydailydigital.com/articles/child-porno...