Until I read a proper interpretation of the law by a lawyer, I will consider these just knee-jerk reactions by forum owners who can’t fathom being held responsible for the things their forum members post if they don’t moderate. There was similar hand-wringing when GDPR and Article 13 passed. Things are probably going to be fine.
edit: After a bit of more research, shit like this is why small forums aren’t excluded.
There were already three attempts(Flensburg, Augsburg, Frankfurt) earlier this year.