The real question is the hell did people downvote me?
You shut someone down without informing or educating them on a text based discussion centric community with an academic stick up its ass. A one word response to a complex technical question is terrible etiquette in this sort of social environment.
I pretty much agree with your second sentence/point, but this is bullshit. I got so many downvotes on reddit for literal descriptions of my perceptions and experiences as a gay woman. Half the time there wasn't even a debate or argument happening. As reddit culture skewed more and more conservative, many technical and nerdy communities became actively hostile to the basic facts of my existence. Then there are all the downvotes I got for believing in human and minority rights while downthread with some bigots. My more visible posts on the same topic would be solidly upvoted, while everything below the arrow was smashed below zero because only angry little shits followed the discussion that far. I agree that the system on Lemmy isn't meaningfully different and will inevitably have the same effects, but sorting by voting over-centralizes the meta and destroys real discussion and diversity of experience and opinion. It literally only works in limited circumstances within subjects that have objectively correct answers. Anywhere else it introduces so much chaos.