RE: New Milestones: 4k Account Tokens and 80 rep.

I assume owners would act in revenge on people leaving low score reviews to deter further negative comments.

Again this assumes that it is possible to engage in a flag-war within such a system. Why would conflicts of interest like that be allowed? There are many ways to gauge whether or not reviewers know what they are doing. If a reviewer is using a 5-star system and then only gives 1-star and 5-star reviews (which is very common) then the network already knows they are full of shit just by the way in which they interact with the system.

A good reviewer will automatically have a bell-curve distribution.

On a 5-star system a good reviewer will, on average, give a three-star rating, with 2 and 4 happening frequently while 1 and 5 should only be given out like 10% of the time or less. The entire point of a system like this is to pinpoint the conflicts of interest and eliminate subjective over-emotional reviews based on a single personal experience.