Google's stated goal is to organize the world's information. That (presumably) includes linking and making easily searchable all those pseudonyms at those dive

Google's stated goal is to organize the world's information. That (presumably) includes linking and making easily searchable all those pseudonyms at those diverse forums you use. Trusting that those bits of interaction will stay nicely in their own corners is like trusting that only your high-school buddies will see that compromising picture you just posted on Facebook.