Hold on. WHY is someone getting banned for saying bad games don't deserve sequels? I've seen that said MANY times on these forums about other games.
According to the ban itself:
"Trolling (You were specifically told by Carl not too long ago to stay out of Star Fox Zero threads if you couldn't behave, and here you are again: stoking the flames and gloating about any bad news regarding the game. It's becoming very transparent at this point, and if you can't take the advice of mods and learn to dole out criticism of this game in a civil manner, then bans will just get longer.) ~ RavenXtra"
Apparently shark's history was taken into consideration.