Through my own testing, I've found that a SXS taunt adds one stock. You can only get a "mazillion" blue flashes if you don't consume any stocks. If you've found a way to do 5 or 6 consecutive stock-consuming moves and still maintain your blue-flash, please tell us how.
When up close, crouching is the most reliable way to avoid a grab. You don't need for your opponent to crouch to hit a mid, as long as he's not blocking. For example, your opponent can be in middle of an attack or trying to step, and get hit by a SXS K in the process.
Did you even bother to...
I'll admit. I bought SC4 only to tie me over until SF4 comes out. Here's how I pass the time:
Ryu
Ken
Chun-Li
Blanka
Dhalsim
Zangief
Balrog(Boxer)
Vega(Claw)
Sagat
Bison(Dictator)
Cammy
Dan
Akuma
Makoto
Ibuki
Urien
Alex
And in case you prefer TMNT...
Leonardo...