OK,The original name is only provided for the convenience of collation, if it affects the layout, I will pay attention
As coolkevin said here its all English speaking board, so most of the time we use original name as direct source of sets ( Chinese or Japanese) and pronounced name in English. If there is number of series in set we always provide it, if its not we just post name and title(in english) so someone can search and find that content.
Many cosplayers who work as individually do not have number of set they just have Titles. And later in many titles are added numbers by different websites or blogs which creates confusion.
So any information about sets or movies is well appreciated, we also have hard time translating titles and can be mistakes that's why we always provide original name of Idols .