This goes against Labour policy of 'Denying the oxygen of publicity to the BNP'.
The trouble with such posturing is that it defeats the objects of democracy in that if somebody's views are vile, you should be able to 'destroy them in public debate'.
When you run from debate - voters are entitled to believe that you have something to hide. [Refer to countless articles posted on here regarding Richard Dawkins who uses precisely the same blarney.]
The advantages of the former policy to Labour, is that it has also been used to silence UKIP, stifle debate on the EU and aid them in the suppression of all 'bad news' about the EU from much of the media.