Mark Zuckerberg’s surprising call for tighter government regulation of the Internet has its share of supporters in Congress, but neither lawmakers nor advocates are sure how much of the Facebook CEO’s advice they want.

“These decisions about the future of Facebook and Internet firms need to be made through democratic institutions, and some of those outcomes may be good for Facebook and some may create more challenges for Facebook,” said Marc Rotenberg, president of the Electronic Privacy Information Center. “What Facebook thinks is best for Facebook should not determine the outcome of the policy process.”