I starting doing it less and less when you would be crouching blocking, making me look plain silly. I only learnt when it stopped working, plus against the better players I tend to play nowadays (back then it was just you) it never works so I had to faze it out my game and bring in new things.
Not really, is it possible to even mash throw? I dunno but I certainly do more walk up throws and tech more throws then I ever could before, if thats mashing throw when I suspect they will try throw then yeah I suppose I do. The only time I consciously mash dp is when I need chip damage to win and they jump into me.
Exactly, mashing works against very poor opponents but anyone half decent will have it sussed normally in one round. Plus a random or mashed dp at the start of a game will make your opponent more cautious and may take them off there game a bit, being unpredictable is a massive part of this game.