Akuun said:
What exactly is fuzzy guard?
Fuzzy guarding is from Virtua Fighter, and also works in Soul Calibur. Basically you hold guard and tap down, so you're quickly going from standing guard to crouching guard. What is does is quickly duck under throws, quickly block low hits, or some other tactic like ducking an "A" attack in SC. You have to have some control over it though, otherwise you'll get hit by a mid, low, or throw.
What's a dust loop and why is it such a commonly (and sometimes hotly argued) topic? All I know is that it's something to do with the Dust move in Guilty Gear.
It's a move done by Sol Badguy. It has to be done against the wall, it's where the enemy is in the air (you have to knock them into the air first), and you jump, hit them with the dust attack, they bounce off the wall, you jump cancel, and hit them with the dust attack again before they land. There's tonnes of variations on it, involving different ways to set it up, and different moves that can be used to add hits.
I guess debate comes from whether particular setups are escapable or not. If the enemy is in hit stun in the air for too long, they can shake out of it. Also there's debate over which setups are most effective, and if old tactics work in newer games. I think they might have even removed dust loops from newer versions.
BTW these are all pretty simple explanations and I think people who actually use fuzzy guarding and dust loops (not me) could give better answers.