If your clan is the problem there are always alternatives to leaving. You can try talking with your general and transferring to a more active clan or something along those lines. Xiled Gaming has something for everyone its just a matter of finding what it is you want to get out of it.
Well let me say, being a member of both XGC and SYN at times, there's always a different experience when you change clans. I'm sure if you switch clans, you'll be happier and make friends with more active people in the community =D
Depends on what your looking for, SYN is a whole different ballgame from KoG but if your willing to give it a try go for it. Whatever keeps you interested.