I loved forums, and we didn't have anything, except for 'total posts' and 'total replies' for users. I like that.
I do like upvoting, but I think karma should be hidden. Maybe if you go to user profile and click a button to see the value. It should not show if you hover over the user in a discussion, like Reddit. This is too much incentive for Karma farming.
I don't like downvotes, and that's the reason I'm on lemmy.one - no downvotes here at all
thing is... in the end, karma doesn't serve as that anyway (indicator of quality). It's so easy to karma farm by (re)posting content (sometimes even stolen) in multiple communities.
In NSFW communities, at least on Reddit, I see SO MANY posts that doesn't fit the community they were posted in, but being upvoted anyway because... well... it's nudity