or it’s just instance-specific, ie, one could just ban the instance personally
why is there a blank post
Why does this comment look like a shadow?
Nope. The protocol is way too public for shadowbanning.
You can be banned by other instances than your home instance, when that happens no new post/comment from you will federate to that instance in particular but the others still sees it as normal.
For example, I could ban you on my instance, and I wouldn’t see anything from you ever again, but my instance would be the only instance to see that ban.
If you get banned from LW or lemmy.ml then a lot of people won’t see you so that could definitely feel like a shadow ban, but there’s nothing shadow about it you can see it in the mod log.
Every action is public in the mod log so I don’t think shadow bans are possible although you might not know to check the mod logs in the moment
Technically every ban here is a shadow ban as you don’t get notified for it.