Compliance certification costs money - lots of it. The laws also require proactive scanning of uploaded material, not just responding to complaints, and require a person to be declared liable for mistakes.
Gone are the says of paying a couple hundred a year for a host and a vBulletin license. The new costs are many thousands plus permanent liability, and no thanks - that's way more than I'm going to do for a group of enthusiasts online.
https://www.lfgss.com/conversations/401475/