(名詞) 著迷於蒐集和分享個人的生活資訊以改善自知之明 (self-knowledge) 及美化自我表現 (self-presentation) 的人。

At the other end is the so-called "datasexual," the type of person who enjoys sharing data as much as David Duchovny enjoys a good roll in the hay. This is that person who obsessively shares their every move online, then tracks and measures the performance of what's been reported.
—Steffan Heuer and Permille Tranberg, "Digital promiscuity is bad for your health," The Daily Dot, March 7, 2013

Here is a collection of people who record and track their everyday lives online, and then analyze and quantify their existence, from toothbrushing to reading to fecal contents. These "datasexuals" now have a social movement, of a sort, which they call the "Quantified Self" movement.
—Tom Slee, "Evgeny Morozov's 'To Save Everything, Click Here'," Whimsley, March 9, 2013