@maxdancona,
That's the point. I never opted for google plus, on purpose, and just recently they announced they are letting google plus people email as much as they want to gmail people (and maybe something about not needing an address), and, I just learned, apparently vice versa. I figured since I didn't have the plus thing, I didn't have to worry, but no.
So when I went to gmail to clear my a2k Thank You for Reporting spams stuff, they wouldn't let me in without signing up for an all in one account.
No mention of opt out possibilities. F'em.
Having read a little more, I see You're In unless you opt out.