I saw a post just the other day about people that automate this kind of thing. Something along the lines of:
The posts get shared around a lot and you get paid passively. Also the more unethical variant where you skip the first 2 steps and just steal the photos
It's still practically the same now as it was then, just without the porn. Still no algorithm, and the majority of the userbase is people who have decade old accounts.
It's leagues better than Twitter, at least.