I don't know what's considered "excessive" but I've thumbed down a total of 7 songs since creating the station a couple weeks ago. I wouldn't call that excessive. I think this is a Pandora glitch. And just fyi, my artist only and newly released modes have returned to my Depeche Mode station and I didn't have to wait 24 hours. So again... I'm thinking Pandora is glitching. Thanks for the info. ... View more