i'm not sure if this is really true. wot algos can factor in many things like zaps and how often you interact with them. yes its not perfect but it can be pretty good.

You definitely can't filter out all bots. Some users even explicitly care to interact/follow bots. You can, however, filter on credibility. But like irl social credibility, there are different interactions you can work with to establish it. It can be context dependent, but i think even some sort of random rotation between them would be effective. I don't have evidence, for these claims but I think it would be something interesting to play around with, especially in a space where so many are searching for "the best wot algorithm"