Comment 5 for bug 1423585

I'm not seeing examples of arbitrary URIs as og:type values, either in this Facebook example of creating a custom type:

https://developers.facebook.com/docs/opengraph/creating-custom-stories#objecttypes-define

(where apparently singular and plural nouns are preferred)

or this more worked out example:

http://www.productontology.org/

But I'm willing to accept either that it doesn't matter for most consumers or that if it turns out that OpenGraph consumers really prefer CURIEs for types, that we'll put that in later.

Consequently, I'll write up a release note blurb and push.