I feel like having more info on where/how thoses numbers are computed would be helpfull, because I want to use theme to gauge interest in my games, but I feel they are unreliable as you pointed out.
I find the Referrers part of the analytics helpful in that regard. It should give hints about recurring users vs. new users. But then again, maybe those metrics have their own quirks. The download metric is talked about from time to time, so it's quirks are somewhat known.
