Yeah, it's very weird, and I haven't thought about checking analytics for the source.
I just did and 57 from Brazil and second 25 from USA. Most likely that person comes from Brazil and sometimes uses proxies to bot...
Nothing weird in Fan Circles. I assume botting is common in Youtube world, and it's harsh to punish Youtubers for something they don't do. It's not obvious the Creator is doing it. It will be more obvious if that happened a lot to unpopular videos.
Now the drive of the person who bots.... I don't know. Maybe he thought he was some kind of a Samaritan, trying to give people free views. Or maybe he was just testing his bot.
Mysteries, but a way to solve this problem is to remove the video from the signature. Or put a unpopular video there