Oh yeah, I remember him saying that. It's retarded to do this today because many fighters will buffer your move if you just keep mashing, this is especially bad in 3D fighters where there's lots of hit strings. If you double tap the punch button in VF you'll always do your character's PP string because the game assumes you wanna do that, let's say you play Tekken as Kazuya and double tap left punch, Kazuya will automatically do the first two punches in his 112 string. It makes you do moves you don't want to do. The "double tap" was only somewhat relevant back in the arcade days when not only were the games much more stiff with recognizing inputs, but also everyone handled the machines with the grace of a gorilla so if a machine was old and nobody bothered maintaining the buttons and/or lever would work like shit and often ignore your inputs because you didn't mash those damn half-broken buttons hard enough.
