Lol I think it is a bit harsh to demote some to Baby.
Jr. Member and removal of their -karma should be a fair start for them. If they become repeat offenders, a suspension should be appropriate.
This would be what mnixxo suggested and what you thought was better, but fair enough.
..... Or maybe with each 10 negative karma users will go down with their rank. -10 karma 1 rank down, -20 karma 2 ranks down etc.
I prefer this one. Some of the reported plagiarists stopped copying but their numerous plagiarized posts/comments still helped them rank up.
This is why I suggested a negative karma limit (-10K) for having signature de-activated for the repeated spammers and plagiarists, rather than simply de-ranking them. I don't really mind how they are demonetized, but I think the worst offenders should be dealt with as a priority, rather than simply reduced to Jr Member and continue spamming as part of signature campaigns (from bountysuite primarily) as well as others.
Lack of financial incentive to spam = much less spamming.