They don't sell their account to bad actors much anymore, instead they sell services. Want this product or that news story or this ... To have lots of comments and upvote from tens of account. If you search a little you can easily find those shops, they sell for every social media out there and you pay per "thousands of likes" or stuff like that.

They used to be based on super low paid human, then it was bot train the account up then humans use it when it's cooked, and I guess we're now entering the bot from top to bottom era.