PieFed help

There are two score on piefed :

• attitude : the ration of your upvote and downvote
• reputation : the vote you receive

Most of user have an average attitude score around 70%. People who really downvote have an average score around 30%. Once it reach a threeshold, it will remove your ability to downvote.

And to counter karma farming, post in meme community provide 0 reputation.

As far i know, there is no karma farming. They are tool for mod and admin to help them in creating communities and remove abrasive people.

So imo, there is no credit social score because there is plenty tool where you don't have to use downvote as : keyword filter, community & user blocklist. Its only effect, the score system, is removing your ability to downvote once you reach a threshold. That's up to mod team, if they want to keep people that downvote a lot. And it improves the whole community.

Edit : typo.

Small point of clarification: Piefed is not Lemmy. Both, along with Kbin, Mbin, etc., are often referred to as the "Threadiverse".

But yes, Piefed does have a reputation score. Lemmy I don't believe does.

/kbin had (and by extension: Mbin has) got reputation points

No and yes. Most people don't like karma farming and all that stuff. So I think the "Karma" value is absent from the regular user interface. Instead it shows how long you've been here and how many posts and comments you made. But at the same time some other software calculates your "Karma" value, I think some phone apps display it as well. And some moderation tools factor in votes on a user. So a clear yes and no. But there isn't any Karma competition here.

Piefed seems to create a percentage based on a user's upvote/downvote ratio but I don't think there's anything more than that pointless and unintuitive metric.

some instances don't even allow downvotes (or show them)

There seems to be an attitude percentage (ratio of upvotes and downvotes), but no one cares about it.