In its non-stop quest for personal data, Facebook is rolling out a rather ingenious feature that could help it gather even more info about you. In addition to constantly harassing users to fill in personal data on their profile pages, Facebook will now offer an “ask” button that will appear on a user’s page in the top left About box, for those cases where personal details aren’t filled in. The new button will give people’s Facebook friends a chance to actually ask them for more details. “Used to be, if users didn’t disclose personal details like relationship status, hometown, current job, or high school, those blanks simply wouldn’t appear in the prominent “about” box,” Ars Technica writes. “Now, Facebook loudly advertises users’ selective silence