For me, he found pretty much all of my handles (including ones i do not want connected to me IRL) and he found out who i am. Now i havn't talked to either of these people in months, but i got messages on facebook and even a long distance phone call expressing an urgent need to talk. He found my facebook and phone number, and had it in his stalker bullshit character profile, which was how i was contacted and told all of this.
Yeah, so the thing is, most of that isn't really hard. With about 2-3 minutes of googling really basic information provided by your bay12 account, I immediately found accounts for twitter, facebook, and a variety of websites. You provide a lot of information about yourself <cityname> <state/province/territory> <nation>; you frequently reuse your username; you have your personal tagline; your age... And that can all be acquired just from your Bay12 profile. From there, google immediately gives your real name, your twitter (and who you've been talking with on twitter as a result), information about political views, ect ect ect... Real name + location = Facebook info.
Another 2-3 minutes searching a <cityname> phone book, and I, or anyone else, could have called you. From 5 minutes of searching on google.
You tossed all that information out there, and if you don't want it to be found, that's up to you to change. If you truly don't want them to be found, your alternate personas should have different names, possibly different locations, and definitely different taglines. They shouldn't so much as share a substring with your other account personas. You then deny you use those other websites from a different internet person, and give the impression of having no knowledge what they even are. The only alternative is to be like you are now, and be easily located everywhere you go.
As for me, I'm perfectly searchable, I've given out my name, workplace, ect; and my portfolio website will show up pretty well on google. You could even read my resume if you wanted. I'm perfectly fine with people knowing those things. I don't have anything to hide.
Or do I? Hidden away on some unsearchable, unrelated website persona linkable to me by nothing short of the NSA, perhaps?
Na, probably not.