So what if he only posts Canada Free Press? It's likely a site he owns, or he is a partner in it. WTF is that to you? Are you a Communist? Mark Levin posts links to CFP and Top Right News and The Right Scoop all the time. These are excellent conservative websites.
You're probably right.
That would mean he's just using Free Republic as a free advertising tool.
That's pretty scummy, don't you think?