Quoted from http://www.bbc.co.uk/dna/mbfivelive/F2148564?thread=2267363&post=26190130#p26190130
I don't see that as a flaw at all. If a majority of the people in this country voted for no hopers, there would be some weird politics going on in Parliament. We'd have the extreme right, the extreme left, greens, Christians and the extremely weird with NOBODY holding the balance of power.
These people would have to find things they COULD agree upon and we'd gain from the Wisdom of Crowds. In the end, you could not find any group of six hundred-odd people in this country who would rule much better or any worse than the current lot.
That said, at what point do you think the no hopers would form a government? They're such a disparate group that they wouldn't be cohesive. If the no hopers got less than say 70% of the vote, we'd still find ourselves with a (albeit minority) Labour or Tory government. If 80% of the population REALLY want to vote "None of the Above" then the major parties are so out of touch with the electorate, or so corrupt, or so scandal-ridden or any combination of these that they do not deserve power.