I reran the script to see if Overswarm's claim of 4chan involvement held any merit.
The following 15 users joined after the poll was created and voted to BAN Meta Knight: Buffles, coolstorybro, Drephigami, Handyman, Icntspll, Lifeshroom, luigismansion1060, qBALL6400, qerkdtx, Shaded_Snow, smashmelee22, STMH, Teran17, Vincent46, Zelgiu
The following 18 users joined after the poll was created and voted NOT TO BAN Meta Knight: BlackaDenBlack, Boom Cube, Burnttoast_90, D.mann, DrizztWar, Greasy, IAmSmarterThanYou, Isane, Martselsoep, morbidlyobssesed, Nocturne953, Oppo28, poisonedkris, rcspitfire, sprks, tabernacle, Ugg, Volacide
It seems that a few more dubious votes have been made since the last time I ran the script (when it was 14-3 Yes-No suspect votes), but it's still very negligible. The 4chan hypothesis appears to be bogus. Nevertheless, notice the rhetorical effect when Overswarm says 'there was a brief 4chan effort to vote "no" to show us "tourney***s".' He is cleverly suggesting that good players (tourney***s as he puts it) are the ones voting to ban Meta Knight, as opposed to leagues of scrubs, which is the actual case.