Or maybe they simply took pity on the moms and dads and grandparents joining Facebook who now had to all of a sudden discover that their kids weren't as clean-cut and innocent as they once thought.

或许他们只是同情一些老爸老妈，姥爷姥姥，这些长辈突然通过用户名发现他家的小孩并不是他们想象中那样清纯，无辜。 （像这位link，以及这位link的网址就是如此）。