I contacted GMPG with my robot profile. However, in the e-mail I sent I munged the URL. (I’ve been trying out WordPress and have a slightly different naming scheme than what’s here. I cut-and-pasted the URL from WordPress, realized the domain was wrong, and fixed it without thinking about the rest of the path.) Matt kindly let me know I’d fubared the link and updated the GMPG folks with the correct one, but I decided I should fix the link anyway through an Apache rewrite:
RewriteRule ^(200.*) /blog/archives/$1 [R=301,L]
So, patch applied and all’s well. I like the shorter URLs, but I’m not going to convert MT just yet.