Your final comment made me laugh. I am 30 years old and my Protestant parents are very much a part of my life. As I was growing up, they were very outspoken about "spiritually dead" churches, such as, the Catholic church due to all of its dead rituals, man-made traditions, etc. Fast forward to today, I am married to a Catholic and can relate to her better than my parents.
My mom, who is very active in a ND church, and from time to time will send me literature denouncing the practices of Orthodox and Catholic Christians. I wont bore you with all the details but I'll read the material she sends me and respond appropriately. My mom on the other hand does not respond to information I send here, whether she reviews it or not I'm not sure.
But during these interactions I can distinctly see a difference between the viewpoints of an ND and an Orthodox. To me, it seems that NDs today are more concerned about the level of one's faith and how it effects your lifestyle on earth rather than having a God's will be done attitude, and being more concerned with the eternal. Additionally, I found that NDs profess a lot of faith, but cannot accept the spiritual in physical form unless its a healing. Things such as icons, eucharist, etc are not given a place within the faith of an ND. How can we truly believe that God took on meat and bones for our salvation with only a spiritual outlook? - this is a question my mom has yet to answer.