It's par for the course to blame politicians. It's just part of holding them to account. But Interactive Democracy gives everyone the ability to get involved in the political process and with that ability comes a degree of responsibility.
Recently many commentators have blamed politicians for the collapse of the banking system and the economy due to the softening of financial regulation. But how many people foresaw the impending disaster and had the gumption to do something about it? If Interactive Democracy had been in place would we have seen apolitical experts calling for change and drumming up public support? Some how I doubt it.
Will this dilution of responsibility allow politicians to dodge responsibility? I imagine that the majority will look at this on a case by case basis, but it's worth remembering that, with ID, we don't have to wait for a general election to exercise our wrath.