Fighting game Casuals are different to usual game casuals. The SC Hardcore see CaSists or whatever we're calling yourselves, as not-serious players, based purely on the fact that most CaSeers will spend days and nights perfecting their frilly dress bow, but have no idea what iGDR means.
Most CaSarisors may actually know these things, and simply not care. The rare few that do are either semi-skilled players with some decent CaS, or Pocky-Yoshi, who I'd call "Compasual Jesus" were I religious.
Not to say you can't be both. Most 'hardcore' players have messed around in CaS I bet. Even if it is just to recolour or reoutfit their Standard Character.
Ultimately though, it doesn't matter. The way I see it, there are 3 camps.
1: Those who enjoy the game, no matter what aspect they play.
2: Those who don't enjoy the game and don't play it.
3: Those who play the game but bitch endlessly about trivial things they can't control.
Fuck bows.