I moderate a reddit community with ~200k subscribers, and I really wish I could disable downvoting. Automod takes care of most posts that violate our community rules, and I usually catch the ones that slip past within an hour or so.

On the opposite end of the spectrum, quality posts are almost always downvoted immediately. (I assume it's by self-promoters hoping that it will cause their content to rise in the rankings.)

Hiding posts scores has helped with bandwagoning, but I wish the two options were "upvote" and "report to mods."