First, I think that forwarding messages from a private list
is something that is frowned upon.
Secondly -- and speaking as a Trend employee and someone intimately
involved in the ICSS/BASE project -- we don't talk/play in the BGP
traffic stream. We simply reap potential target data from a
BGP/Origina-AS/perfix-announce dataset, and then allow the ICSS/BASE
subscribers to make polict decisions on their merit -- whether to
allow their downstream hosts to reselve DNS queries to suspect
hosts, or not.
We do not, in any way, piss into the BGP traffic stream. 
It's just an intelligence feed -- one of many.
- ferg