Reading this was like the breakfast club of the internet. While I was never into the MFGG community I can respect such an old and venerable website as that one. There is a legacy to many cultures on the internet and to me it feels like these places and these legends as you put it are just as culturally significant as any other legends and cultures from countries or groups of people. It happenned much faster and as such it is less engrained in people but I think it is still here and it is still very legitimate. Its like everywhere you can see these micronations all stuck together, always with some overlap but never too much.
I just hope that it will all be archived and saved for future generations, just like ancient history, these things can easily be forgotten and lost, leaving us with only witnesses and speculation as to what these ancient times and traditions were.