I think we had several threads on Easley, but you're right, it's odd that no one's started one now that he's wearing a gold jacket.
Kenny Easley is the only defensive player that I know of that quarterbacks would check to see where he was lining up as soon as the huddle broke. Hearing that said by quarterbacks reminded me of Jimmy Brown once saying something similar about Sam Huff. I know of no other safety either before or after Easley, including players like Ronnie Lott, Larry Wilson, and Troy Polomalu, that teams would game plan against. He was the best safety and one of the best defensive players in his era, and the only reason why it took this long for him to get in was due to his longevity.