A few instances have had problems with this, Lemmy.nz had massive problems with staying federated with World, because the standard would only send one piece of information at a time. (yes, really)
They ended up over a day behind at one point, because every comment and upvote counted as a piece of information, and it was like four per second that could be sent.
I also suspect someone from one of the ml domains would have far less interaction on a post than most, because so many instances don't federate with them, and many users on ones that do have blocked the instance they're on.
There's some comms here that autoban people with bots based on downvotes for a day or so, but this sort of automoderation is not very common. Threativore in our instance does it against spam but it has a built-in appeals system.
No this is for everything, but you're complaining about an automated mod system in wide use over a service encompassing many different approaches per subreddit, rather than a specific mod action, so it is out of scope for this comm.
Meh it's their community, they can do as they please. I could see some more controversial subs choosing this for themselves, and in that context with full consent of those involved it seems fine to me. aka free speech isn't anywhere close to free.
it's definitely not happening in only either of those conditions. i've only caught on after the the two years because it how heavily reddit obfuscates it. I actually thought I was imagining things until I could confirm I saw it happening to other people and then knew how to search for another thread about it.
On Lemmy, or Mbin, or PieFed, or in Mastodon, or PeerTube, or Loops, I presume Friendica, etc., basically any open source federated software product I mean, you can make you own server, create your own sub/community/magazine/whatever-it-is-called, and invite people to post in it, or just post yourself, and nobody can stop you. They can defederate from you, thereby refusing to offer your content a platform on their own machines, but they can't tell you what to do on your own machine that you pay for and administer.
Arguably using Reddit is giving consent to them doing this stuff. We could not stop them, hence we came here to be free of it, and now we are:-). But anyone who continues to use Reddit continues to offer consent for Reddit to keep doing this stuff, if they want to.