Yes. But also, since the giants do only the bare minimum of automated moderation with no oversight and no checks and balances, the systems are easy to game by bad actors.

See the example of someone on HN saying his wife lost Whatsapp account for reporting spam - the spammers probably retaliated from hundreds of fake accounts. Same with this youtube video. Same with people gettong reported az spam ehrn criticizing certain nations.

And the giants of course do not care, why would they.