Lim Goon is done with maple.

Hurr durr. From the original post:

"here's the blogpost saying he hates the gap between the rich and the poor.
http://blog.naver.com/PostList.nhn?f...&currentPage=7

"Maple is created without thought", or something along those lines."

If that is not his reasons, you'd have to take it with the creator of the thread.

That's a pretty big inference to make. Could be just quitting for other reasons then looking back and saying "yeah maple had all these problems".