Absolutely not. The EAs are much too long and/or unique to guess, and NONE are generic words/names as you offered.
Sure, spyware or some f***ing facebook app ripped them.
I'm aware of those services all the way back with Hi5 scumballs, and that didn't happen to me.
The only place on the...
I run my own mail servers on a shared hosting account with Hostmonster. I have the default or catch-all option enabled on one domain name, and have sent and received emails from a couple of hundred email addresses ("EAs") in the catch-all format. Ex: x@y.com where x = a variety of characters...