From tmp:

"what do you think, cpunks, should you have the right to ignore people regardless of the pseudonyms they use?" How could a person prevent someone from ignoring another? on the net? "i ask if it is possible to construct a system that protects anonymity but at the same time allows someone to filter all pseudonyms associated with another person." Code it, and they will come. " ideally we can develop moral codes where our algorithms fail us. " Ideally, you would be able to enforce these moral codes. Ideally, they would reflect not only what is possible in reality, but what is truly desireable. Blanc