Here's another checklist of warning signs of an unhealthy discipleship group taken from "The Discipleship Disaster" by Mary Alice Chrnalogar.
MANIPULATIVE GROUPS MIGHT...
•cause you to feel a distancing from family (ask your family if they feel you have cut them off emotionally because you, yourself, may not be able to see this)
•cause your spontaneous decisions to diminish because you want to check with your discipler first
•cause you to abandon normal old hobbies and friends who are not in the group
•cause you to be stilted in your conversations with family about plans
•diminish the closeness to your family & old friends
•cause you to accept a leader's advice so readily that some perceive you as unduly influenced or controlled
•make you think that you have more accountability then most churches when in reality it is more accountability to reporting to a man
•cause you to have an unhealthy submission and an un-Biblical obedience to human leaders
•subtly teach that following all of what leaders request is seen as spiritual growth even when you don't feel right about it
•create unnecessary shame or guilt when your desires don't match the authority
•cause a person to suppress their real personality type or change it
•cause people to lose their personal initiative
•cause burnout problems, serious depression, and a variety of other psychological and spiritual problems after a period of suppressing their own thoughts and desires to follow what their "mature discipler" thinks is better
•cause you to see yourself as going against God when you have thinking independent from the leaders
•cause you to see leaders as better able to hear from God
•cause you to label yourself as rebellious when you are struggling with accepting their advice
•cause you to see yourself as going against God's will when you don't want to accept their advice as more valid than your own ideas
•cause you to deny that your discipleship group could be practicing the "shepherdship error" when it may very well be doing exactly that
•only indoctrinate the leaders and those being groomed for leadership, into the abusive discipleship errors
•allow part of the congregation great freedom but not those whom they are grooming for leadership
•exist within mainline churches
I thought the last several points were interesting and show why those NOT in leadership or being groomed for leadership may never fully see the dangerous teachings.