Hey, I noticed this, this morning on my instance. They're operating out of at least 3,1 day old instances mixed in with a few legitimate older accounts on other instances. We've been discussing it on the Lemmy HQ Matrix.
It seems like this Aussie.Zone member might be involved in perpetrating it as well @[email protected] as they flagged as matching the same vote waves on multiple posts.
Like I said, they popped up in the same vote manipulation against select users as those other accounts did. Make of it what you will.