OK, I have to admit that I'm the guilty party who k+'ed secretive past 69.

Unlike me, but I missed the significance of that number somehow.
Anyways, I think that the karma, and the negative karma can be useful in warning one off of getting into a flame war with someone who has collected more than a few negatives. However, I'd have to be REALLY peeved about something personal and relevant to this forum to give a neg. Short of someone directly insulting a contribution I made here, I'd rather just walk away, so to speak.
I'd be at least as happy with a karma total, rather than showing K+ and K- separately. I do understand that this is likely not an easy thing to implement with a packaged forum software though.
Also, I contribute what I can, when I have something worth posting and time to stop in. Unfortunately I rarely have the opportunity to create appropriate content, and am not able to spend much time collecting from elswhere.