Dear Niantic: Please consider all new reviewers as "Good" for a while
To the fine product designers and engineers at Niantic:
I've been a denizen of this forum and one on Facebook for quite a while, and I've been a reviewer since the launch of OPR beta in 2016. I've had the opportunity to see a lot of complaints from reviewers, some legitimate and some misplaced, and there are some that are systemic and quite valid. One of the most commonly-repeated and IMO extremely legitimate complaints involves the experience of new reviewers and their rating dropping immediately. I could find lots of examples to back this up, but this recent post contains an excellent illustration of the issue: https://community.wayfarer.nianticlabs.com/discussion/13748/recommendations-to-enhance-initial-ux-experience-of-niantic-wayfarer
This is a very common complaint: "I was excited to start using Wayfarer! I logged in and spent a couple of hours reviewing, and my rating dropped. Why? I was following the guidelines." This is a poor initial experience for new Wayfarers as their initial exuberance is quickly converted into frustration. Even if someone is doing excellent reviewing there is going to be a lot of noise in their rating at first, and they could drop to poor simply because of the order in which their first few reviews resolve. Please consider assigning new Wayfarers a fixed initial rating, perhaps Good, and keep it locked there until they have enough agreements for their rating to be statistically significant. This would prevent a lot of frustration and probably lower the attrition rate for new reviewers.
(I'm assuming that you are doing the rating calculations "correctly", which is to exclude reviews that are still pending resolution from the rating, and base the rating only on those that have reached a decision. If not, that's an obvious first fix.)