I did a search in the 1.7.4.1 folder and their address popped up 3 times. i swapped their address with my address and reran the benchmarks... it still benched with their btc address. 

it is probably coded into the application, what you changed were probably the logs.
as for the 44BTC and the account not showing movement, as i haven't gone back to check on older versions, i don`t know if that is the only address they used(not blaming they did), but i have only their word as this is hidden most of the time and only by looking at the logs i found out by chance that the address is still used when the users has already been entered, in any case this should not be happening at all or come with stricter notification that ALL benchmark time goes to nicehash at the very least, it is not hard to change in the code at all, so arguing against such change should have a proper explanation.