You make a good point about not being obligated to believe the claims about a person just because some other person or some entity or some website forum says so. Too bad the average person can't get this concept through their mind when it comes to TV & media agendas. This said, the reputation of GLP seems to be one of a web site that began forum life with good credentials and a genuine mission that has since become infiltrated, turned upsdie down and into somewhat of another me-too nut house in fairly short order.
To tell the truth, up until a couple months ago, I would not have known a Bill Deagle had it walked up and bit me on the nose. But then out of nowhere there was a flurry of activity wherein tBill Deagle was instantly a topic of passionate discussion, and the lines of for & againsts seemed to form rather quickly. That youtube video seems to be just one example and while one puddin does not make a proof, there are several other puddins out there with few good things to say. Here's another.