WebID CG and official foaf:Group profile?

Howdy!

Can I find somewhere online resource which describes WebID CG as an
instance of foaf:Group?

In other words LD version of https://www.w3.org/community/webid/participants

I would see it practical as an entry point for crawling WebID profiles
and harvesting statistics about current adoption + validating profiles
out there in the wild against spec. Also it could show adoption of
WebID-TLS if people include public keys in their profiles.

Suggestion: http://webid.info/#cg

Cheers