What about misinformation?
Without downvotes it will slowly bubble up to the top because the only barrier is finding enough people gullable or ignorant (precisely, not demeaning) enough to believe it. Or if it's "pop culture misinformation", it rises to the top by virtue of it being popular misinformation.
Both of those are not ideal for quality conten, or fact based discussion and debate when vote counts exist. As more often than not more votes = more true to a layman.
We've seen this on any other platform that have "the only direction is up" mechanics, because the only direction is up.
Another risk is promoting misinformed communities, who find comfort in each other because their shared, incorrect, opinions of what should be fact based truths find common ground. I don't think those are the kinds of communities beehaw wants. Thankfully community creation is heavily managed, which may mitigation or remove such risks entirely.
What I'm getting at is what will the stance be here? If beehaw starts fostering anti-intellectualism, will that be allowed to grow and fester? It's an insidious kind of toxicity that appears benign, till it's not.
To be clear I'm not saying these things exist or will exist on beehaw in a significant capacity. I am stating a theoretical based on the truth that there is always a subset of your population that are misinformed and will believe and spread misinformation, and some of that subset will defend those views vehemently and illogically.
I would hate to see that grow in a place that appears to have all the quality characteristics I have been looking for in a community.
The lowest common denominator of social media will always push to normalize all other forms and communities. It's like a social osmosis. Most communities on places like Reddit failed to combat and avoid such osmosis. Will beehaw avoid such osmosis over time?