But Facebook, itself, wasn't terribly visible about the vote, despite its assertion that it did put forth a good effort to get people to vote on its policies and supposedly served nearly a billion impressions to users about it.

The backlash from users is not something Facebook would want to deal with following its IPO flop and growing questions about its growth expectations.

One PCWorld reader writes: "I guess they don't really want people to vote since there is no notice of this on Facebook."

And U.S.-based privacy advocate David Jacobs, the consumer protection counsel at the Electronic Privacy Information Center, agrees.

"The notice has been seriously inadequate. As far as I can tell, only members of Site Governance and Facebook and Privacy pages were notified, and the vote is only open for a week," he says. "The procedure seems to be flawed, unless the goal is to have a vote that doesn't really mean much."