because he's being blamed for their loss of revenue. HA HA
"According to the source, Limbaugh is considering the move because Cumulus CEO Lew Dickey has blamed the company's advertising losses on Limbaugh's controversial remarks about Sandra Fluke, the Georgetown law student. In Feb. 2012, Limbaugh referred to Fluke as "a slut" because she had called on congress to mandate insurance coverage of birth control. The subsequent controversy over those remarks resulted in a significant advertising boycott.
http://www.politico.com/blogs/media/2013/05/rush-limbaugh-may-leave-cumulus-163282.html
"According to the source, Limbaugh is considering the move because Cumulus CEO Lew Dickey has blamed the company's advertising losses on Limbaugh's controversial remarks about Sandra Fluke, the Georgetown law student. In Feb. 2012, Limbaugh referred to Fluke as "a slut" because she had called on congress to mandate insurance coverage of birth control. The subsequent controversy over those remarks resulted in a significant advertising boycott.
http://www.politico.com/blogs/media/2013/05/rush-limbaugh-may-leave-cumulus-163282.html