I may watch too many physics videos, but I really don't get how Stands travel faster than light speed. This would interfere with causality (due to the Stand's attack hitting before it landed, thus resulting in a grandfather paradox), or the Stand's shouldn't be able to affect information in the bradyonic world.
A scene I see a lot of people use to scale the Crusaders is when Silver Chariot deflects The Sun's beams. People say that travels at light speed. And I have more questions than one. That's plasma, right? Plasma has to travel slower than light speed, due to it being made of bradyons. Even if it was traveling near lightspeed, it would have just nuked the surronding area, due to it hitting air molecules. So basically, Stands have to be pretty slow to not either kill their user, or literally transcend the bradyonic information area.