How much more can you trust a profile pic and a real-ish name than "someguy443"?
Lets say you wrote a cool android app, but there is a little bug in it that is triggered by a phone you don't own or weren't able to test, I have that phone. I go to contact you, which of the following reports do you trust more -
From: mhurron [at] saminds.com From: Google+ Roman Fox
Now be honest, even though this exact setup probably smells off. Given receiving a email from the above or from the above Google+ account, are you going to trust one or dismiss one simply on the name of the account?