The Smash community was shunned by the fighting game community for the longest time because of how immature they acted at their own events. Lots of the people would get sidetracked and not show up for their matches, and then raise a ruckus if they got disqualified. The commentators would often curse endlessly on streams, and overall they were just bad news at the events.
They recently got their act together, they are being more responsible, and they are now allowed to compete in some of the tournaments with the regular fighting game crowd. You see very litle, if any crossover though. It seems like the players either play regular fighting games, or they play Smash, but not usually both.
Bragatyr, here is thread discussing the difficulty of using C. Viper:
http://www.gamefaqs.com/boards/975212-s ... 549?page=3You may not understand it all, but as someone who has used a lot of SF4 characters I will tell you that she is very hard to use, and she relies on lots of move cancels and feints to even give her the needed mobility to compete with the top tiers.