No, I was not being sarcastic xD Pichu was my favorite Pokémon until Diamond and Pearl. I played with him a lot in Melee and just loved being in the middle of a fight making cute noises. On the other hand, I hate Falco and got really pissed when he made it in Brawl and not Pichu (or any of my Melee favorites, actually). But I do understand why a lot of people don’t care about him, because it’s a clone and gets recoil pretty much just for existing. Personal views on Pichu aside, I think he would add some challenge to certain game modes. Beating the Boss mode with Pichu would be slightly more challenging, for example. He could also work as high-risk, high reward character, doing serious damage but getting hurt in the process. He could also have some interesting alternate costumes like the Spiky Eared or the Pikachu-Colored or even work as a tag team with another Pichu like in the anime. But yeah, not going to happen unless Sakurai decides to include every single veteran in one game.