I think it's just very difficult to get a consensus. the only actual productive idea would be a collaborative project, but 5 people will never agree on a person's type, because there are just too many variables like functional accentuations and different understandings of what a type is. you could introduce specific rules so that type suggestions need to have a certain level of accuracy but you're just gonna lose all creative subtypes with that and most people don't have the time and patience for it anyway.