Web 2.0 was a mistake fueled by Zuckerberg copycats looking for the same magical user growth hack. Giving users and later bots an entirely free, easy to use platform to focus their agenda onto is a cancer within the network, not a feature. This decade is the result of it. The old fix was filtering via technical chops. Braincells, time, and money was required to have an online opinion. At minimum, your agenda would need to satisfy this large filtering function else it just wouldn't exist. Now that it's entirely free, and the clearly agenda-driven takes can no longer be filtered, the cancer is left to grow until the fuel (advertising, shareholder returns) runs out.