It's not very empathetic that's right but it's still true. People have to stop building their livelihoods or passion projects on these platforms, if they want to have any control over them at least.
I guess its the right advice if you want to ensure nothing bad can happen but the likelihood of someone actually doing that for a project they do in their spare time is tiny. It's like saying, "You should only communicate with these people via telegraph because thats the only way you can be sure that no one can prevent you from doing so."
It's a solution. It's not incorrect. But it isnt a good solution for the vast majority of individuals.
I once created a pretty basic phpBB forum for my college.
Spammed by russian hackers within minutes.
I know it's not very empathetic to say but it's still true.