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Facebook isn’t making much profit from its users right now. Its ads aren’t anything special, and few people click on them. Moreover, Facebook executives don’t seem to care. “We made the decision to continue to grow our headcount quickly in 2013, particularly in product development,” chief executive Mark Zuckerberg said Jan. 30 in the company’s earnings call. “This will likely cause our expenses to grow at a faster rate than we expect to grow our revenue this year, which means that we aren’t operating to maximize our profits this year.”