Potentially the worst problem I've noticed in this thread is the general lack of knowledge surrounding the Swordfighter. Because of Nintendo's decision to not allow him online (not even in For Fun) many people, after the initial hype, simply forgot that the Miis existed. Maybe there are a few things that could be done to help fix this?
(Note: If any of the following exist, could someone please tell me? I don't want to be uninformed.)
For one, maybe there should be a friend code sharing thread within all of the Mii boards? Without the ability to practice online, lots of people are limited to the people in their community - if they're this dedicated to Smash Bros to pick a character that isn't supported online? I'd believe that they're better than most of the people around them, thus making practice very hard, and knowledge about the Miis suppressed even further.
Just having one thread for friend codes, for Wii U and 3DS alike, would immensely help with this. For one, the members of the Mii boards could play against each other for experience. In particular, I'd be willing to help. I'm a R.O.B main with relative inexperience of any other player, but I have played a bit of Zelda. Unfortunately, because I haven't even had the chance to play with a single Swordfighter, let alone a Mii? I can contribute nothing of interest.
Offering friend codes to mains of other characters would allow you to practice on them, to see what flaws exist, and fix them. Maybe that's being a bit too optimistic, to think that every other main would be willing to do such a thing in the first place. Otherwise, the only way knowledge about this character, and the other Miis, is going to spread is via tournaments.
So, let me try and contribute first. For anyone who wants to practice against a Zelda, (albeit an awful, awful one) my friend code for my 3DS is on full display. Let's spread knowledge of characters who deserve it!
Edit: Will be back later.