[Nedusa]

Of course there is racism on twitter, there's sexism, ageism , homophobia , religious hatred and a hundred other ism's

People who subscribe to this are pretty much anonymous so they can indulge in any bigoted viewpoint they want.

The technology must improve so people's identities are confirmed and their tweets are traceable back to them. Then you would have chance to clean up twitter and make people accountable for their tweets...!!!