Specifically about Leringard, it's surely not the most famous city in the world. Probably not even close, to be truthful. I happen to know that Leringard is part of the greater Trelania write-up, and that the in-game layout of Leringard as of the last update more closely resembles (in spirit, anyway) the official but as-yet unreleased write-up for the city.
A lot of Lore had to be rewritten due to some people leaving and they did not want their contributions added. So we had to go back and rewrite a lot of lore I mean a lot of Lore. We now have it so people who contribute to Lore, agree that the Lore they add stays. Secondly they only have a few part time people writing lore and then it needs to get approved before it gets added for the public to see.Any way that is the simple answer and easy answer. I'm sure if you dig through the forums you will find the detailed reasons as to why Lore is not all available. You are welcome to apply to be a writer and help increase the Lore we have.
Ah, well thanks for that clarification. Was thinking it was a famous city... it at least has a somewhat famous tavern that has its own section on the forum. Leringard Arms Inn and Tavern along with The Silver Buckle and Wild Surge Inn though not sure what cities/towns those are from.