Theoretically, possible.
But at the end of the day, miners don't care about numbers, rates, stats and graphs. They simply look into their wallet and compare the daily income to other pools and to mining calculators. It is there where 10% are missing (it seems).
Ente
That's why I'd like some long term p2Pool miners to post their personal stats somewhere. Does p2Pool record your average round hashrate from which your earnings come, along with the earnings?