Highly doubtful, in my opinion. The tournament organisers do as much as humanely possible in order to weed out potential smurfs throughout this tournament and we hope that the SCII community understand this; and ultimately understand things like this can happen from time-to-time, especially in a tournament aimed at the lower league players.
Could you please reveal the measures taken by the TO's that you're talking about? If they are as extensive as you make out, it should hopefully put everyones mind to rest. However, I suspect they aren't that extensive, as I seemed to be the only one to check the match histories of a few people I suspected to not be BSG, who were consequently DQ'ed I believe, back in BSG 6 or so.
One way or another, smurfs are always going to be able to sneak their way into the BSG, so lets just hope that they get bored of beating low level players or grow up.
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