I can imagine the exchange between Stephen King and his agent: > "Stephen, I'm trying to market your books, but the publishers aren't seeing any engagement on

I can imagine the exchange between Stephen King and his agent: > "Stephen, I'm trying to market your books, but the publishers aren't seeing any engagement on Twitter". > "Oh I left because I don't want to pay $20 / month to someone I disagree with politically." > "Have you been hitting the bottle again?" End of conversation. The value most of these celebrities get vastly exceeds $20 / month. The Twitter-celebrity relationship is symbiotic, nor parasitic.