If we keep it without karma, bagdes and other reward crap then the only reward is the information of the post itself, the plus that ir brings to the people involved. As a forum should be.
Upvoting posts is fine, but Karma I can do without. Back on Reddit sometimes I help somebody with something and I get maybe 3 or 4 Karma. Make a stupid joke in a popular Thread and get that hundred fold. Karma is useless.
I never understood this obsession with internet points to the point where people are willing to farm them. I guess on Reddit there was a monetary incentive, with people selling accounts with certain amounts of karma. Honestly to me it’s always been more like “cool, I got 48 upvotes on this post” or whatever, and move on with my day.
It’s my karma and I want it now!