The comparison you're making is nonsensical.

My home kitchen doesn't routinely serve strangers. The forum I host trough a server in my cupboard does.

If you want to make a comparison, it's between a small family restaurant and a giant fast food chain. It may surprise you but food inspectors treat both in roughly the same way.

Face it. Nothing meaningfully separates my forum from giant social media companies apart from scale.

Hence, small forums hosted by hobbyists and volunteers should be shut down.