rack-noslashdot will redirect anyone who has been refered by slashdot (and doesn't mask their HTTP_REFERER header)
config.middleware.use "NoSlashdot", :redirect => 'http://slashdot.org'
or let the default kick in
Copyright (c) 2009 Christopher Redinger. See LICENSE for details.
This is just a play on Julio Cesar's NoIE middleware. http://github.com/juliocesar/rack-noie
in response to Peter Cooper's tweet http://twitter.com/peterc/status/4926493168