I honestly don’t understand

Could have just stopped there tbh.

From what I’ve seen, it is pretty accurate

It’s not. It’s the hobby of a right wing Zionist masquerading as a neutral and authorative arbiter of facts and bias.

For example, it rates The Guardian, Fox News and Breitbart as equally factual.

Is it that people see the comment count go up and expect a human comment to interact with, only to be disappointed and then downvote the bot?

That too, yes. Personally I have it blocked and get annoyed by there being no comments in stead.

If so, I’d suggest Lemmy/Mbin to not could comments made by bot accounts towards the total comment count.

Or just get rid of the biased and counterfactual bias and fact checker.