Something sunk in for me today that does make me question karma.

It really hit home that an outspoken malcontent can earn posting Thanks from other malcontents and ultimately gain enough to seem credible as a contributor. Ironically this works against the system.

I'm not suggesting any sort of karmic censorship but it does point out, again, that human judgment HAS to be the most important element. There may actually be some way to implement automated checks-and-balances to minimize "malcontent validation" but ultimately people need to apply some sense to the processing.