No, I got what you were saying. You attribute it to increasing numbers of users, with constant karma rate.

Maybe it's a timescale thing. I've only been here about a year. To my observational feel, the karma rate has increased a lot in the last couple of months. I don't think my observational clock would have noticed a 10% or 20% increase - more like at least a doubling.

Someone recently posted membership changes per month. I think the increments were around 10%, if that. Now, maybe people are also visiting more too.

Some of my feel is coming from my own posts - 8 karma for that? Really?

Many things could be the cause of my feeling, but I'll bet you a dollar that karma/discussion page hit has gone up in the last 2 months. Not that either of us is likely to collect - the data and therefore the money.