It's certainly disappointing that Pat Stogran has chosen to drop out of the NDP's Leadership race - particularly by leaving taking shots at the party which made sure he had a place on its stage.
That said, Stogran's campaign ultimately seems to have been defined by an unwillingness to learn about the political process in which he wanted to participate, combined with an inclination to blame others for that weakness. And while he never had a strong chance of winning the NDP's leadership, his quick and bitter exit can't be taken to have done much other than throw away any chance of contributing to change for the better.