Sorry, but I am not reading 153 posts. But throwing in my thoughts as a tagger using Picard. I totally agree with @Kid_Devine
The data in the database needs translating by Picard.
One little request \ thought with respect to Picard. Many of us use Picard to tag our tracks. And digital tags only have space for ONE country. I would love to see an OPTIONAL switch which basically says “if there are more than three release countries, set country to worldwide”. Or “If more than three then check for GB, EU, US and set one of those in order”
That latter idea would then be able to be adjusted for the user’s country. If I was French I’d want to know when the French release appeared. I don’t want to have “Albania” set as the country of release as it was first alphabetical. 
Yes, the data should be in the database, but Picard needs a way of handling it.