I will try to explain you why I want things like this to be standardized.
1) A Nation with two or more users, the user who opened the thread doesn't want the "Road to Tokyo 2020" part, the other user(s) are slaves of dictator Sindo and want the "Road to Tokyo 2020" part. What to do ?
solution a) Give priority to the user who opened the thread (but why? Impossible to know)
solution b) Give priority to the majority of users (and what if it's tied? We delete the National Thread at all?)
2) A Nation with two or more users, the user who opened the thread is a slave of the dictator Sindo and wants to add the "Road to Tokyo 2020" part, the other user(s) would commit a suicide if they see a "Road to Tokyo 2020" part. What to do ?
solution a) Give priority to the user who opened the thread (but why? Impossible to know)
solution b) Give priority to the majority of users (and what if it's tied? We delete the National Thread at all?)
3) A nation with two or more users have all the users slave of dictator Sindo and they all want to add the "Road to Tokyo 2020" part, but the user who opened the National Thread is not active anymore. What to do ?
solution a) Change the title
solution b) Don't change the title because the user could come back and could get mad someone dared to change the title to his National THread
4) A National thread of a nation of one of the admins (so by definition a slave of dictator Sindo). But another user opened the thread and he would commit a suicidie if he sees a "Road to Tokyo 2020" part. What to do ?
solution a) Give priority to the user who opened the thread (but why? Impossible to know)
solution b) Give priority to the admin (dictator Sindo I hate you!)
5) A National thread of a nation of one of the admins (so by definition a slave of dictator Sindo), he also opened the thread but all the other users of his nation would commit a suicidie if he sees a "Road to Tokyo 2020" part. What to do ?
solution a) Give priority to the admin
solution b) Give priority to the majority of users
I made just 5 random examples but I would be able to make 100 of them changing all the combination of situations and numbers.
Your answer is usually like "just let users do whatever they want", but as you see in my examples, sometimes that is not possible, some users will obtain what they want and some won't (and we are just talking about 3 words in a title, don't forget).
If my time was unlimited, the best solution would be to write a rule book so that every situation would have its solution to decide what the title should be, but I am sure you all agree that it would be a crazy loss of time to do that just to add 3 words in a thread's title.
And this is exactly why I try to standardize as much as possible, to save time. I already lost too much time writing this message explaining the reason why I think all national threads should have the same title, for sure more time than I would have needed to just change the titles of all threads. But I hope this helps you to understand what I am saying.