It might slow them down, but integration of the government into online accounts will have its own set of consequences. Some good, of course. But can chill free speech and become a huge liability for whoever collects and verifies the IDs. One hack (say of the government ID database) would spoil the whole system.

I agree, this would have very bad consequences regarding free speech and democracy. Next step after that would be a reestablishing of pseudonymously platforms, going full circle.