I think people on here are selling him short as far as HOF chances. Will it happen soon? Probably not. But it may happen down the road.
Using PFR Approximate Value and comparing him with other OLBs, both in and out of the HOF, he stacks up pretty well. Biscuit has a total of 121 placing him #22 All-time. And that includes some guys who are debatable as OLB, like Julius Peppers and Lance Briggs. He ranks ahead of several HOFers including Andre Tippett 109, Dave Robinson 103 and Dave Wilcox 91. Among others who are candidates he ranks behind Clay Matthews 137, Isiah Robertson 127 and Kevin Greene 122.
He made 5 Pro Bowls, was a star on a 4 time super bowl and AFC champion. I'm not so sure he has zero chance. He is probably 50/50 to make it somewhere down the road.