This wouldn't work anyways.<p>Especially for <i>datamining-is-our-core-competency</i> company like Google it should be relatively trivial to match your old and new identity.<p>There are plenty of ways how to do it. There are only 7 billion people, you just need 33 bits to uniquely identify someone [1].<p>On social networks you leave much bigger trail of clues (photos, timelines, locations, friends, activity patterns, likes/dislikes, writing samples, etc).<p>Put together enough of vague data and your identity will pop out. Remember EFF's Panopticlick [2]?<p>[1] <a href="http://33bits.org/" rel="nofollow">http://33bits.org/</a><p>[2] <a href="https://panopticlick.eff.org/" rel="nofollow">https://panopticlick.eff.org/</a>