Then they are stealing people's content and imho should be punished for it. It is baffling that we let companies get away with "if you don't opt out you agree" or even "you can't opt out, delete your account or you agree" and often hide that in generic sounding terms & conditions updates.

Again, I think we should require companies to get the user to actively give their consent to these things. Platforms are free to lock or terminate accounts that don't, but they shouldn't be allowed to steal content because someone didn't read an e-mail.