I'd settle for boring if it eliminated the childish antics. I friggin' feel like I'm back in school as I watch this karma tantrum of his.
The karma meter doesn't mean a thing as it is obviously inherently poorly designed and as you indicated subject to misuse by any number of people, members, owners, global moderators (I think that covers everyone).
Didn't your mother tell you when you were "back in school" that "names" can't hurt you. The same thing is true here. People will judge you for what you say or don't say, not because some "meter" says you have "x" plus ratings and "y" negative ratings.
Relax, life is short. Have Travis give you a hug. Ask him about that pic above. He probably remembers it from "back in the day".