WASHINGTON — Visit Mitt Romney’s page on Facebook and you’ll see 11.6 million “likes.” Lee Wolf, a self-described liberal who likes nothing about Romney’s politics, was stunned to hear from friends on the online social network that his name had popped up as one of the apparent supporters.

“I don’t believe in anything he says,’’ said Wolf, who owns the Lobster Shanty, a restaurant in downtown Salem, Mass. “I’m still wondering how it happened.”