When it comes to list relationship I don't think is such a big mystery.
We are all subscribed to many newsletters, I don't know about you but I am really annoyed when a marketer just pitches once a week. There is no relationship that can be built on asking for money once a week.
Would you be my friend if once a week I knocked on ur door or call you to sell you something? Of course not. So why do people think it is different in the I.M. Space?
Give more ask less attitude, is the lists I stay the most and buy from the most and recommend the most.
Weather you are training your list this or that way mentality has a fundamental flaw in the thinking process.
You are viewing people as cattle, as your personal ATM and they are not.
People stay in any diet, program, school etc for one reason and one reason only. They receive information that produce results.