IndieWeb community members that did this:
Google officially shutdown login and write access to Google Buzz on ... 2011?
Google did maintain readonly access to Google Buzz post permalinks.
"E.g. this blog post:
links to (presumably the destination permalink at that time - as of 2012-05-22)
which then redirects to:
a shorter but less readable URL, with the username "scobleizer" apparently replace by an opaque userid "111091089527727420853". Post id "GQcJyW6TBta" appears to have remained the same, and the slug has been lost.
Still, at least the link still works with redirection and the original post and comments all appear to be intact."
Testing these links on 3/Feb/17, they just generate error pages.