twitter is one of the richest companies in the world and can easily afford to hire staff to find inappropriate accounts to report and suspend but why bother when there is plenty of slacktivists that will do the job for free.
Such slacktivists are too dumb to realise they are being exploited.
Such people are known as twitters bitches.
Obamasaid that both he and visiting Russian President Dmitry Medvedev use the popular social networking program--which he mistakenly referred to as "Twitters," instead of "Twitter.