I think I already saw something about negative karma or misusing karma. But the details are only available to the admin and mods. They can review and see if the karma was justified or not. Then they can take proper action regarding that. But that takes time from the admin's and mod's side.
Implementing something new should be good. But not sure which one should be the best. The karma system is a good thing and that helps to keep out low quality posts and spammers. But people are here using that for no reason or for some personal issues. There needs to be a solution for this.
Because we as members can only see the karma number and do not know what the reason behind it is.
We also don't know which posts get karma and this leaves me confused and what effect karma has for all users, it just looks like a number is increasing or decreasing.
If we as members or as account owners know what is behind the karma, maybe we will be more concerned and can review what happened.
It needs a few more overhauls so that this Karma system can be useful and have important value for every user.
For those a spammer, or admin fraudsters usually already embed a special badge spammer etc., and that is not that obvious enough.