Netplay is such a weird beast. There's some stuff that obviously works better online, so it's always important to keep in mind and ask yourself is this still a wise option offline. Of course you can't limit yourself entirely because even offline, you need to know when you're able to mix things up. Then you have to deal with what your opponent is thinking and see if he's the kind of guy that is thinking along the same lines as well. Maybe he's the kind of guy that knows he'll get punished 4/5 times on an air dash or jump in, but that one time gets him this super good combo into a good mixup.
Playing people in ASW games, I see a lot of players make decisions through coin flips to avoid situations. Wakeup DP/roll/super/up-back instead of blocking then thinking of a way out. On the offense side, I see a lot of these kind of players focus more on combos rather than the neutral and defense side of things. Against these players, I feel like I get no adaptation from them and it's the same thing after 20 matches.
A lot of decisions just get watered down that you can't just rely on netplay practice compensating entirely for offline practice. I feel like I'm pretty good on being able to get what I can out of good connections, but a good deal of that relies on my opponent as well. Fortunately offline practice with friends isn't hard for me at all, but it's frustrating to help my online-only friends that don't quite understand why some of their gameplay decisions can be really bad.
Edit: Not that I'm top level player status or anything, but I'm still competent. Due to college, I grind a lot less in fighters, but I'm glad the above isn't what's holding me back.
Leffen is unable to attend BH5 this weekend. :-(
It's like a big major for UMVC3 missing Filipinochamp: having a super-talented player with the "villain" persona gets people way more invested in the matches.
I heard about this. Really sucks :/