While the idea is novel, domains are virtual real estate. I don't think it's in anyone's best interest to retire domains/addresses. There are many more sane ways to make all of the content easily accessible indefinitely.
Well with "real" real estate, there are properties that we say as a society are too important/notable/what-have-you to allow to simply be bought and sold like chattel. Between war graves, historical monuments, disaster memorials, etc. there are lots of ways we've found to set aside property to commemorate.
Despite the giant asshole I must sound like in the other threads I have really enjoyed the aaronsw writings I've been pointed to in the fallout from all of this, and I think that Winer's proposal could make a fine start to a suitable online memorial for Aaron.
If we can deliver IP over pigeon there has to be a way to at least set aside a DNS entry and coordinate hosting amongst the many who would volunteer for it.
