Downvote everything you don't like over and over again, instead of leveraging subscription and blocking functionalities to actually curate your experience.
Votes show the approval/disapproval of the community. And I think it can be important to crowdsource content curation.
As a hypothetical, if every non-nazi blocked nazi contributors, then a new user might show up and notice a bunch of upvoted nazi content when in fact most active users don't even see it. I'd rather downvote as much as I can in some cases.
That said, there's plenty of other things that just aren't my thing that I'm more likely to block.