There must be a whole load of players like me who played the game for years blissfully unaware of their stats, until one day after being called a bloody noob potato/lemon/tomato for the millionth time decided to take notice.
'But oh dear what's this I've played thousands of games, totally screwed up my stats for all time and can't reroll because I've invested too much time into this account.'
The solution: A one time chance to reset each account. The user would have to select a new user name or modify their current one so that the pre rerolled stats could be archived off and the overall record of play preserved, but the new user name would effectively be a new account with a load of tanks and equipment already in it.
Charge people €20 to do it.
You'd make thousands!
*Cue forum fury*