I agree with Rhodsie too. I don't think that the clubs should tell people not to leave without warning otherwise they'll farm you. That will just put people on caution towards that club. A good club should have active people making an effort to talk on CC because frankly some people that join clubs are active, but they don't talk on CC at all. Maybe the members can also help those people to talk on CC by asking them questions, welcoming them, etc. There should be a strong and loyal leader. Some clubs have owners that when it comes to war, they start cheating and this whole mess breaks out. Friendly members is a must. No one should be fighting on CC. Also maybe the club can help each other volley, etc. in order to help loyal people upgrade.
I don't know if it helps..but just my opinion.
P.S. Brad and Katie are the best owners you can ask for