Exception handling matters. Your attitude towards these edge cases is likely damaging the argument that you and i both seem to agree on: allowing anon reviews is healthy, freedom of saying what you feel to be fair and true is important. The issue as i see it is if companies ask to let themselves self regulate via moderation of some form, yet allow damage to occur as that’s important to their business model, they have to expect courts and eventually public sentiment to shift perspectives. This is why i say, the attitude of not handling these exceptions well is dangerous and likely damaging to the objective of freedom of expression. The model needs improving to protect privacy yet prevent damage to private individual and businesses. News papers have been publishing retractions for hundreds of years, if it wasn’t for this their business would also have died long ago.