189 karma · joined June 30, 2011
Senders see a popup window and indeed G+ does not reveal your e-mail address, which is as it should be. Receivers get an e-mail entitled something like "Message via your Google Profile" with the sender's Gmail account's from name/address.
My comment on G+ encouraging the use of your "real" identity was just meant to highlight that apparently Twitter is the outlier as far as social networking sites go, with regard to whether you can have a completely anonymous (or pseudonymous) conversation via PM. With G+, it seems clear they just want you to use GMail.
As long as G+ doesn't go down this path, I can live with it, but I don't like that a "mention" automatically implies "full access" to whatever has been said, especially given that the choice of whether or not to share a particular post with that person is presumed to be up to the author of the post, not anyone else who was also included.
On the other hand, I could conceivably see a need to converse pseudonymously via the service, but being that G+ has taken the FB-like approach that urges users to create profiles that mirror their identity "as you are known to others," they probably do not have any urgent plans to implement a separate messaging service on top of G+ when they see GMail as a natural replacement.
Imagine planning a surprise birthday party, where someone +-mentions them, even by mistake. So much for surprises!
even if you could directly invest in greek bonds, you probably would not want to do this...