theres no need to attack him , ofcourse it's hard to keep track of the "exact" number though
you could get an aprox number if you added all downloads of esf installers from all vairous dl mirros if they release there numbers or add forum users and such together to get your answer , but i doubt anyone will take those measures
i guess we could just say that atleast 60% of dbzians know of esf and the other 40% don't (including kids and some anime lovers that hardly play games) but again i may be wrong , for all i know it could be a 50 | 50 sorta thing