In the rough ‘n’ tumble world of online dating, there has always been one cringeworthy function on most sites — checking out who’s been checking you out.

It’s a veritable who’s who of who does not find you hot, a catalog of those who have ultimately passed. Online dating can be like a sad, deranged form of choosing sides for kickball in the 21st century, only it’s way more personal.

Facebook, that safe bastion of anonymous browsing, has always been an exception. But a new feature rolled out by the site this week makes some of the browsing activities of Facebook users more transparent to other users.

The change applies to Facebook Groups. “Starting today when you visit a group, you can view who’s seen each post,” the company announced yesterday. “This way you can stay updated on the group’s activity.”

It doesn’t apply to viewing Facebook profiles … yet. Could it be a slippery slope that creates more of this unfortunate transparency across Facebook? As Jezebel points out, it’s one step closer to ruining one of the few things Facebook is good for — stalking.

The move is just the latest update that the company powers out, only to have users complain about it later. But this means that if your ex, your mom, or anyone else you don’t want viewing your Facebook behavior, is in any of your groups, well, game’s over.

Don’t say you haven’t been warned.

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