Shaddows - 1:10 pm on Oct 15, 2012 (gmt 0) [edited by: Shaddows at 2:09 pm (utc) on Oct 15, 2012]
I'm confused as to why Google would care whether an Author Identity was composed of one or several people. Which isn't to say they don't, but I can't see why it makes a difference.
To the Identity, there are risks. Obviously the Identity would be limited by the weakest contributor. And an expert in one field could make inaccurate remarks about another topic, impacting overall authority.
There's a nice conspiracy theory that "William Shakespeare" was in fact a pseudoname for a group of playwrites. So historical evidence may be in your favour. Or not.
[Edit - spelling]
[edited by: Shaddows at 2:09 pm (utc) on Oct 15, 2012]