I was completely opposed when e.g. Youtube essentially removed downvotes. They're a pretty important indicator of when someone is full of shit, even though there's an obvious abuse potential as well. As a kbin user, I understand there's a limited federation of downvotes. I actually think it's nice, whether or not it's representative of the rest of the fediverse.

I try to limit my downvotes to irrelevance, spam, intentional douchiness and bad faith participation - as far as I can figure out what's what. At least while the community seems worth it. Unlike, for example, Reddit, where the proportion of bad faith participation was huge, and the general tone was quite hostile. I like the fediverse better.