“Hairspray” star Amanda Bynes deleted her Twitter account last week without any notice to her fans. Earlier this month, Disney starlet Demi Lovato, 18, tweeted that she’s saying “goodbye to twitter” because “the access that the other people have is uncomfortable to me.”

“The blessing of tweeting for celebrities was this idea that you could bypass sending out a press release and go directly to those who are following you,” said Robert Thompson, professor of Television and Popular Culture at Syracuse University.

However, many celebrities have found that their tweets are being made fun of, or blow up in their faces.