So after seeing both sides, arguing, trolling, responding to stuff, and asking a few questions, I think the entire MetaKnight discussion, both pro-ban and anti-ban, is faulty. The faultiness of the discussion comes from the ledge grab rule, which was pretty much created upon the same "scrub-like" terms (according to many anti-banners) of banning MK himself. Instead of seeing if there are ways to beat it, TOs just said, "No planking. Kthx."
Interestingly enough, there is this in the SBR ruleset:
Stalling: The act of deliberately avoiding any and all conflict so that one may make the game unplayable. Running away from an opponent to reach a better position is not stalling, while doing an infinite grab endlessly against a wall is. Any infinite chain grabs must end quickly after 300% has been reached so as to prevent excessive stalling.
So technically, running away from the opponent to get to the ledge, also know as planking, is allowed under the SBR ruleset. The question is whether or not you are capable of doing anything about planking from any character with any character, not just MetaKnight. This is important because, as many people have said, MK is not the only one who can plank. The answer... nobody knows, because you can only grab the ledge 50 times. Even if you were to max it out, it's about 16 times per stock, plus 2 extra grabs (assuming perfect math and stuff, but yeah). Most players/characters don't need 16 grabs per stock if the traditional plank style isn't their strategy.
Now because there is a limit to number of times someone can grab the ledge, one could assume that this has discouraged/weakened planking... but did it really? You have two isolated incidents, one being Plank vs DaPuffster, one being Dojo vs DEHF. I'm pretty sure that everyone in this discussion has seen Plank vs DaPuffster, but only a few select eyes have seen Dojo vs DEHF, which one could assume is on a higher level of play assuming the players involved (no disrespect to Plank or Puff, it's just an assumption). I really wish that Dojo vs DEHF could be seen by the general public, because I think that match could really settle if this new air planking is a legit game breaking strategy or if it just makes the Falco matchup obsolete. But all we know about air planking is:
1) MK says STFU to the 50 ledge grab rule with his 5 jumps, 4 specials, and 2 glides that aid his ability to stay in the air.
2) MK is 2-0 in matches where he air planks, although 2 matches is not a sufficient enough sample size to definitively determine anything.
So I've come to the conclusion that the discussion on banning MK is inconclusive because:
1) The ledge grab rule is not of the SBR ruleset, but everyone seems to use it.
2) Air planking under the ledge grab rule is "soft banned" in a sense, because people are not doing it on a consistent enough basis to see if it is a game breaking strategy.
If theory and potential is not enough to ban MetaKnight, then MetaKnight won't get banned, but the theory and the potential is enough to create the scare... and as long as this "fear" exists without it be truly proven or unproven, the ban MetaKnight discussion may always exist.
discuss.