YSK: Your Lemmy activities (e.g. downvotes) are far from private
Edit: obligatory explanation (thanks mods for squaring me away)...
What you see via the UI isn't "all that exists". Unlike Reddit, where everything is a black box, there are a lot more eyeballs who can see "under the hood". Any instance admin, proper or rogue, gets a ton of information that users won't normally see. The attached example demonstrates that while users will only see upvote/downvote tallies, admins can see who actually performed those actions.
Edit: To clarify, not just YOUR instance admin gets this info. This is ANY instance admin across the Fediverse.
Maybe it will encourage us to downvote only those comments that don't contribute to the conversation, and not every comment we disagree with. Like how Reddit was supposed to be until it turned into a shouting match.
I think it depends on where it gets posted. If you're in a shitposting thread than I say go wild. I do agree that it has a tendency to derail conversations though.
Kind of a bummer for anti-dictator memes. People might have thought they could maintain anonymity by upvoting without commenting. Better to not engage with it at all.