Here it is, a proposed supplement to RFC2826:
http://www.ietf.org/internet-drafts/draft-higgs-root-defs-00.txt
It's called "cat herding". 
The short answer is that there's a far better chance of coordinating the alt.roots into a single unified root, than suffering the consequences of a permanent and very real root fragmentation by ignoring them.
Best Regards,
Simon