Simon,
With reguards to your illustration:
For instance, if I came over to your house and constantly shouted my opinions through your letter-box would you want to shut me up? Of course ... would you be restricting my right of freespeech and expresssion? No - because I was excercising my right in an innappropriate way and abusing the priveledge (a much better word than 'right' IMHO)I don't think the illustration fits our discusion this is not your house but a Public forum.
And when something become public we rightly feel that treament should not be partial, but fair to all.., so if we allow so and so to do something,..then in all fairness we should allow other the same concideration.
If someone lived a trillion X longer than you, and had a billion X more reasoning ability would he come to the same conclusions as you?