Currently, the comment for which I've received the most positive karma by a factor of four is a joke about institutionalized ass-rape. A secondhand joke, effectively a quote with no source cited. Furthermore, the comment had, at best, tangential relevance to the subject of discussion. If anyone were to provide a detailed explanation of why they voted as they did, I predict that I would be appreciative.
Based on this evidence, which priors need to be adjusted? Discuss.
No, I wasn't performing an experiment, at least not intentionally. In fact, I didn't count your comment as a cheap karma generator (I have even upvoted it, IIRC) - it was brief, but relevant reply to the OP, and not visibly funny.
It wasn't meant to be a cheap karma generator - it was meant to be short and easy to confirm as good. The jokes everyone have been talking about are likewise.