Linkara is a big fan of all kinds of things that Bob shits over, but he's been friends with Bob way back before his Anita Sarkeesian phase, before Bob went full political/eugenocidal. It could be a matter of the two men staying friends because they (a) share much of the same fanbase and (b)promote each others' work often. They also live half a country apart, which has got to go far towards their continuing association. I know if I lived close enough to Bob to have constant contact with him, I'd put serious consideration into getting a wall, a moat, and a dozen alligators with head-mounted lasers.