Quoting "Daniel R. Tobias" dan@tobias.name:
On 15 Oct 2007 at 14:34:44 -0700, Will Beback will.beback.1@gmail.com wrote:
Doing so won't punish those sites, or even make them stop the harassment, but it will reduce the disruption to Wikipedia that those sites cause. If there's a better way to do that then please suggest it.
The way I see it, there has been vastly more disruption to Wikipedia coming from attempts to suppress links to sites than has ever occurred by the presence of such links.
This is my impression as well. If someone is trolling with a specific link then we can block that person. However attempts to impose BADSITES has primarily resulted in the loss of much good editing and hurt feelings.