I keep thinking this ends with credibility ratings weighing reviewers. Similar to how Google uses the odds that you're a real human to drive their captchas, we'd see a credit rating applied to your email account and this is used across platforms to determine if you're an established normal human or a spambot or a troll and weigh your opinion accordingly.

It's dystopian but I don't see another route out of this growing crisis of credibility online.