[ksymph]

I've certainly noticed the same. I have two accounts here, a main one, and one that I use as a throwaway for occasional personal/emotional, off-topic, or snarky comments. The latter has roughly 4x the comment-per-karma ratio at the moment.

Though interestingly that's largely due to a few specific comments 'blowing up' -- it's typically either 0 upvotes or 100+. I believe the median is actually lower despite a significantly higher average.