Why a regular caller from WFAN disappeared

I have certainly posted many times in this journal about music radio, but I think this is the first time I have written about a talk radio station. WFAN became the nation's first all sportstalk radio station on July 1, 1987 at 1050 on the AM dial. About a year later it moved to 660 AM. I listen to the sports talk programming very irregularly. This morning while I was in my Twitter account I did a search for WFAN and found reference to this article in the New York Times. Political and talk radio shows do have their regular callers. When a caller is no longer heard, people think of the worst. A few years ago when regular caller Doris from Rego Park passed away many WFAN listeners went to her funeral. This gentleman named Al called regularly at about 4 AM. He was elderly and could no longer live at home and moved in with his daughter who forbade him from calling since it would wake her up. :)