What are the benefits of having a high rating, such as “great”? Or what happens if you have a poor rating?
You need it to be good or great in order to count towards the wayfarer agreements in game.
Yep, so if you want your medal in Pokémon Go to increase, you need to maintain a rating of at least “good”
I think its also been mentioned that if someone has a high rating, their reviews may carry more weight towards a decision, ie your wayfarer work matters more. But I am not sure if that’s confirmed