CultureInfo and Pluralization are broken. What is the main reason for doing this?

[Ark-kun]

Why does .Net Framework erase Chinese and Macedonian?

referencesource/System/compmod/system/componentmodel/CultureInfoConverter.cs

Line 373 in 5697c29

{"Chinese (----)", "zh-TW"},

referencesource/System/compmod/system/componentmodel/CultureInfoConverter.cs

Line 481 in 5697c29

{"----n", "mk"},

referencesource/System/compmod/system/componentmodel/CultureInfoConverter.cs

Line 482 in 5697c29

{"----n (Former Yugoslav Republic of ----)", "mk-MK"},

Why break the pluralization?

referencesource/System.Data.Entity.Design/System/Data/Entity/Design/PluralizationService/EnglishPluralizationService.cs

Line 133 in 5697c29

{"anathema", "anathemata"}, {"----", "----ta"}, {"oedema", "oedemata"},

referencesource/System.Data.Entity.Design/System/Data/Entity/Design/PluralizationService/EnglishPluralizationService.cs

Line 147 in 5697c29

{"simplex", "simplices"}, {"iris", "irides"}, {"----oris", "----orides"},

referencesource/System.Data.Entity.Design/System/Data/Entity/Design/PluralizationService/EnglishPluralizationService.cs

Line 149 in 5697c29

{"b----o", "b----i"}, {"crescendo", "crescendi"}, {"tempo", "tempi"},

referencesource/System.Data.Entity.Design/System/Data/Entity/Design/PluralizationService/EnglishPluralizationService.cs

Line 156 in 5697c29

{"dictum", "dicta"}, {"millenium", "millenia"}, {"t----zium", "t----zia"},

chassis: why?
trapezium: what's wrong with geometry?

[svick]

I believe there is a list of forbidden words, which are removed when publishing this repository. That seems to include names of countries that other countries object to (Taiwan) or used to object to (calling the country that's now known as North Macedonia as simply Macedonia). It also includes words like "rape", which is the part that's removed from "trapezium".

Since this is reference source (i.e. not compilable code) for .Net Framework, which is more or less not actively developed anymore, I don't think it makes sense to care about this.