Honestly I wouldn't be surprised if this started happening at Lemmy too. Its a lot easier to control what kind of content is on a platform when you do something like this.

Now, I don't particularly think this is a good idea, but I can see the benefit of this as well. People have the freedom to upvote whatever they choose, even if I think they are dumb for doing it, and they shouldn't have to worry about anyone other than law enforcement or lawyers (in extreme edge cases) using that information against them.