One thing I still don't understand is if upvotes are per instance or collective. If we had a karma system, it would be very open to abuse with instances popping up to farm.
I wonder what kind of metrics could make lemmy/fediverse stand out. Obviously the discussions are the point, but karma was a psychological motivator.
I hope lemmy doesn't add karma, but even if it did it would be up to the instances' admins to add it or not. That's what make the fediverse stand out, the fact that the community decides instead of someone outside of it