I'm hovering around 300 right now, but we've had several days in a row of content rewards which don't benefit me as much as zap rewards.

I don't recall exactly when I started and what that balance was (poor experimental design on my part), but I'm pretty sure I made almost all of my current balance over about 6 months.

I'm curious how these rapidly rising posting fees will play into it. If the rewards pool grows dramatically, I should start seeing more growth.