I've been a Paulite since 2007, so I was there when the Benton-hating began, and I've probably read all the same stuff you have: I still don't get it.
I've had countless conversations at the Daily Paul over Benton, and I've yet to find anyone who can explain how he's a "traitor" or whatever.
It's one thing to say that he made poor choices for the campaign, impugning his motives is quite another.
And as for his competence: none of us had an inside view of the campaign, so how can we really judge the merit of his decisions?
...anyway, try to educate me if you want. I'm all ears.