Ahh.. well. They figured we were on to them with the sequential numbers. They are mixing it up now. The biggest problem in identifying them is manpower.
Just today I found an account that was added to mack-bot that was a ramodom voter and not part of a group. These have to be manually checked. Even then I make mistakes so I spend a couple hours a day looking at those that respond to my comments or DM me. 99% of the time they are multi-account abusers but there is always human error.
Well, damn.
Oh yes, good old gina-bot. @neander-squirrel. You done good. I love it when a mention results in an insta-reply.