:: Hill PAC also paid nearly $400,000 in consulting fees to firms founded or closely associated with campaign staffers ::
That, right there, is what involves DU.
David Allen is married [?] to a Hillary campaign staffer named Shelly Moskwa. David Allen is the founder of the DU site.
David Allen (”Skinner”) has access to DU member-personal information that can be used by the campaign.
The above sentence from “The Intercept” would indicate (to me) that Skinner SOLD his DU member-personal information to the Hillary campaign.