Amazon actively ignores reports such as the OPs, has corruption in its ranks and even has programs like Vine to generate overly positive reviews. Even if Amazon

Amazon actively ignores reports such as the OPs, has corruption in its ranks and even has programs like Vine to generate overly positive reviews. Even if Amazon could not stop review crime, it could end its complicity in it and drastically reduce it. This doesn't happen because a) it costs money and b) it might reduce sales. Incentives are very clear and relevant in this situation.