Gravity is a free to play game that people can decide for themselves
People seem to be deciding to not play it, and I don't mean this thread. The leaderboard is quite short. Isn't that a bit of a problem?
Aside from the few fake reviews in the beginning, which you seemed to be quite fond of, there is no effort to promote it anymore. Inside the game you can't view ads anymore, so no revenue for ionomy there either.
If the 10 initial levels and the general excitement of a new game didn't last 2 months - it doesn't seem to lead to sustained growth even if ionomy could produce new levels/features at a sufficient pace to keep the interest up.
Does any of the above concern you at all?