June 15th: Lorenzo gives us 24 hours notice that he is going to be using our (a very general our here, meaning all Internet operators) network for performing his experiments on. (oh, and points out that hes been doing the same with IPv6 since last year, just unannounced, but thats okay because noone noticed)
June 15th: Those that check their email frequently enough to spot this ask Lorenzo for at least a week notice before doing this in future.
June 20th: Lorenzo gives us same day notice that he will be using our network as his plaything again. Anyone sufficiently behind Lorenzo in the grand scheme of things (either they have better things to do than read their email all day, or perhaps they're on the west coast USA) won't even know about this until it is too late. If something strange happens I'm not sure everyone will suddenly think better check to see if Lorenzo is playing again.
I see the use of the Internet for experiments like this to be somewhat frivilous, and the notice periods given as warning even more so. I'm sure Lorenzo would not appreciate if I were to give 20 minutes warning of some clandestine experiment, such as announcing more specifics of his institutions prefixes as particularly helpful!
he is announcing his own bleedin' prefixes. get a life randy