We can argue some of these points all day long, but the bottom line is this: I believe that Christ gave authority to his Church, including the "binding & loosing" you mentioned. He gave it to the Church, rather than to St. Peter persay, but it was given. The RC & Orthodox Churches have hundreds of years and the guidance of the Church Fathers, some of whom sat at the feet of Jesus himself!
The Adventists were founded in the 1800's by a crackpot who claimed the end of the world was going to happen, and kept changing the story when it didn't.
I will stick with my faith, though poor in your book it may be.
A huge point on SDA doctrine - you don't have to believe in EG White to be an SDA. My general rule of thumb is to study the scriptures and worship in the church that most closely matches what you find. While I don't believe membership in a church can save you, I also don't believe that it can condemn you either.
Later, FRiend
Strange you should mention this; Polycarp, Bishop of Smyrna himself did not honor your Sunday observance and kept the Passover on the 14th of Nisan/Abib as was the custom of the Apostle John. Polycarp was a disciple of John who not only sat at the feet of Jesus....but reclined on his breast, John 21:20 at the Last Supper. It is interesting that John was given the responsibility for the care of Mary and also the last Apostle to die. He taught Polycarp and others the correct ways of the Lord and not the strange customs, myths and traditions your organization eventually came up with.
It is very telling that John still celebrated the Passover on the 14th, which floated....different days year to year, instead of the "Resurrection Sunday" your organization came up with.
"Binding and loosing" does not give one the authority to change the least letter of Scripture. It only gives one the authority to show how to apply the Scriptures.