Charles and his fans are playing games. Blair is reliable. The fact that he reports on a story that Charles's blanking defenders are claiming "originates" from a "non-reliable" source is bogus argumentation. Of course, this is what happens when you play "Six Degrees of Kevin Bacon" with what you are going for - eventually you can "trace" anything back to anything. 

The fact that playing "six degrees of kevin bacon" with neo-nazi groups these days is one of Charles's favorite tactics to tar anyone he doesn't like shouldn't make his accusations valid, nor should it be used to try to claim that Tim Blair, an actual journalist, is "invalid" as a reference reporting on issues like this.