Mr. Zuckerberg, you should close Facebook for a day

Just saying. Fees like the right thing to do to show you really do care about making a change (Howard Schultz memorably closed all stores for three hours in 2008 to signal a new direction in Starbucks.) Yes it'll cause a bit of disruption for Facebook, its users and advertisers and it might even cost you a bit of revenue (but I somehow doubt it.) Meanwhile you might earn some much needed trust back. Way more valuable.