In what ways exactly? Not having Facebook scrape all your data for advertising? Not having advertisers insert themselves into your communications with friends? Not having nutjobs promoting content to you? Being able to communicate without people without a corporation trying to make money off it? Only sharing content with friends instead of friends+platform? Having granual levels of vouching for someone's actual identity? Being able to "delete" your identity without pleading with some corporate department?
I sure there are downsides, but there are some hefty upsides, too.