The best part of the fediverse is that anyone can run their own server. The downside of this is that anyone can easily create hordes of fake accounts, as I will now demonstrate.
Fighting fake accounts is hard and most implementations do not currently have an effective way of filtering out fake accounts. I’m sure that the developers will step in if this becomes a bigger problem. Until then, remember that votes are just a number.
I’ve always wondered if it would help to have to reply in order to give an up/downvote but I assume it would likely just result in more spam. Still, I hope people are thinking of new ways to try things