Meta (Facebook, Instagram, #Threads, etc.):
1. Doesn’t moderate anti-transgender hate on its platforms.
2. Secretly pays teenagers to use their VPN service so they can access all their web activity, gets busted, then uses same app to man-in-the-middle attack Snapchat users to get their encrypted data.
https://techcrunch.com/2024/03/26/facebook-secret-project-snooped-snapchat-user-traffic/?guccounter=1
3. Lets Netflix see user DMs.
Mastodon, gGmbH to Meta:
🤗 Let’s be besties!
https://www.platformer.news/mastodon-interview-eugen-rochko-meta-bluesky-threads-federation/
Follow
Who needs the NSA / GCHQ when you can get Meta to spy on people.
@zleap@qoto.org @aral@mastodon.ar.al Even NSA purchases data sometimes! 
@zleap @aral
BBC Monitoring also nowadays scrapes social media (and probably has access to data from Meta either officially or by posing as normal users) and feeds into GCHQ (they've been doing this since the Cold War, except previously it was more often done over the radio airwaves, but they were early adopters of online surveillance)