Dear Sam,
Again with all due respect, but you grossly understate R’ Shaul Lieberman’s torah knowledge and influence. His torah knowledge was considered to be equal or greater than Rav Yoshe Ber Soloveitchik, the Chazon Ish (his first cousin), Rav Aharon Kotler, or any other larger than life Torah scholar of that generation.True lamdanim learn everything he wrote, and true lamdanim who for hashkafic reasons cannot be seen reading what he wrote do it anyway, in private. Admittedly, there are those who maintain that one is forbidden from studying his works, but that stems only from hashkafic concerns and is unrelated to the consensus regarding his genius. Occasionally, he is quoted by a yeshivishe lamdan who simply doesn’t know who he was, and therefore doesn’t know he shouldn’t be quoting him. Life’s little ironies.