Does anyone else believe that FSmash isn't completely useless? People always seem to say, 'Oh, she always has a better option'. Not always. For example, if your opponent is at 130% and your side B is stale (which is definitely possible), you can use FSmash instead as a kill move, if you find that you're against an opponent who spaces well enough not to get hit by Bair. It has less start-up than side B, so why shouldn't it hit?
Plus it has mindgame potential too. For example, if you use it, they may be stunned in shock and get hit, and still be in shock when they're flying, and forget to DI, and they die. Don't get me wrong, for most purposes FSmash is crap. I'm just saying that it isn't completely useless.