One of Twitter's greatest utilities, without a doubt, is the ability to rattle off conversational insults in 140 characters or less to celebrities. You couldn't do this six years so: Your best shot was sending an e-mail to a generic talent agency e-mail address, i.e. "firstname.lastname@example.org." But with Twitter, there's at least a tiny, tiny chance that the high profile person on the receiving end will actually read the Tweet, as long as it's not buried in the digital deluge of other people insulting said celebrity. If you're lucky, maybe you'll get a response calling you out as a "h8ter."
On Tuesday night Jimmy Kimmel aired a new segment of celebrities reading mean Tweets about them. Jessica Biel, you don't have horse teeth. @madison_davide and his Asian orthodontist are idiots.