I don't know. I feel like "phonebooking" or "whitepaging", while they accurately convey what's going on and why it shouldn't be illegal (ie., all the information involved is obtainable through public sources already, so any effort to outlaw compiling it would be absurd), they're unique jargon that would be easy to throw on the euphemism treadmill. I prefer just using normal terms to describe what you're doing, since that's harder to turn into a scary phrase for a newspaper headline. "Deanonymizing" is probably my preferred term, because it conveys an intent that is legally innocent and morally neutral. You're just revealing who someone is, with publicly available data. There's no further intent to act on that knowledge and it can, in fact, serve other purposes (lolcows with their details fully published tend to be involved in behavior that employers, or even potential partners, deserve to know about; having information to compare makes identification a lot easier).