Don't use any if these proprietary shit apps in the first place. I find it silly to complain about things like that. Even if they have opt-out or even opt-in. They will eventually change it, they will abuse you. They will have "bugs" that leak data. You can only trust open source. And there are plenty of alternatives, that you can self host.
I don’t want to self host. I don’t even want to self-setup some cloud blob store to which my open source can sync. I want something that is free as in beer and zero setup for myself. Happy to take suggestions but Dropbox does seem to fit.
