I think it's especially useful, largely because it's easy to have multiple IDs online, for different aspects of your life. And for the most part, they can be a

I think it's especially useful, largely because it's easy to have multiple IDs online, for different aspects of your life. And for the most part, they can be as pseudonymous as you want them to be, or they can be linked directly to your real-world ID, if you want that. Those things give you control, instead of others.