Smash 4 is a bit wierd because I played a set of characters but never felt like I had a main. But all those characters, Fox, Falco, Samus, Marth, Jigglypuff, Captain Falcon, Mario Pacman, Donkey Kong, Meta Knight, Shulk, Sheik and Bayonetta, I've either played most of their games, or a game they're in the franchise.
Still what bothers you is a big deal in the sense that people can get interested in the franchise after playing Smash, which happens a lot. Fire Emblem being the golden example.
I'm more bothered by people asking for characters in smash when they haven't played a single game in their franchise. Though even that doesn't bother me if they're genuinely interested in getting their games and such rather than simply being part of the bandwagon..
