I don’t think it really matters, just don’t dox yourself and you should be fine.
Also you can have multiple accounts on different instances and stuff if you want.
And I don’t think you can tell that much by just upvotes and downvotes. I often times downvote stuff I’ve seen re-posted too much in different instances. I don’t want to see the same thing dozens of times ofc, doesn’t mean I necessarily have an issue with the content.
Lastly I bet most people don’t use that website anyway. I don’t. What good does it do me to see who downvotes me? If we disagree on something… that’s allowed.

Feel this! ⬇️😆