I agree he should be in the Hall of Fame but voters have been very stingy voting catchers in on the first ballot. It's only happened twice - Johnny Bench and Ivan Rodriguez. They didn't induct Gary Carter, Mike Piazza, Yogi Berra or Carlton Fisk in on the first ballot and they were all better than Joe.
Joe didn't achieve any career milestones (3000 hits, 500 HR, etc) and he doesn't have a ring. I also heard he once drank milk from cows who had been treated with bovine growth hormone.