I finally got back to perusing Mi Yodeya after a "vacation"... when I looked at my profile, it looks like my Facebook page picture replaced the colored splotch, and my full name and email was on there. What happened? Did some sort of automatic data transfer between FB and MY occur?
It seems to me likely that two user accounts of yours were merged, one for which you chose your Facebook picture as the avatar and your real name and e-mail address, and one for which you chose the default splotch (or perhaps some other splotch) and no real name or e-mail address. For whatever reason (I'm sure there is one if this is true, but don't know what it is), the software chose to use the data from the former.
Just so you know, your full name and e-mail address are visible only to you, site moderators, and Stack Exchange employees.