It is possible that if a study got a lot of unexpected traffic, it could cause large unexpected costs. There is a potential to add limits within The Misinformation Game to stop users accessing studies if a user limit is met.
This isn't really possible to do well. Therefore, I think it is best to leave this, and instead to guide people to add billing notifications through the Firebase console.
It is possible that if a study got a lot of unexpected traffic, it could cause large unexpected costs. There is a potential to add limits within The Misinformation Game to stop users accessing studies if a user limit is met.