So? Nobody is "good" online. It's simply who was affected less by the lag. Hence, it's worthless for an actually assessment of how good you really are with a character outside of a very broad sense of if you have the general idea of how to use a character. If you only use a character online and can't back up your skills with similar results offline, you aren't good with him. Plain and simple. Online and offline are too different otherwise. My Falcon is better on line then my Ike is online for example. Am I actually better with Falcon? No, it's the fact that online changes things that much.
If you truly want to know if you are good with Ike, or just good are reading scrubs online through the lag, go to real life tournaments.