It was good until little while ago now I was getting ads whilst they were turned off.

Technically I would not count as a user because content I see is being scraped and streamed separately.

As for content following the userbase, it stands true yet mostly for content that aims the most users by default.

I’d assume that using the service without paying (money or otherwise) for it would introduce costs to the provider hence being worse than not using it at all.

Depends on what you did! Say for example they’re using Graphene to harass/paedophilia then they already have a copious amount of evidence on hand since they are there.

For organising peaceful protests that seems less of an issue and the other end of the chats is the weak link.

Good luck having them delete your data cuz they didn’t delete mine.