I think there are several reasons for that. But probably the most important is how Biblical Orthodoxy is. Unfortunately for most Protestants, they first see priests in vestments, bishops with long beards, icons on church walls; and once they get that first whiff of incense, they run out the doors.
Orthodoxy is a Biblical form of Christianity with a rich theological tradition. It pays to be patient and read, read, read.
"Orthodoxy is a Biblical form of Christianity with a rich theological tradition. It pays to be patient and read, read, read."
Every single covert to Orthodoxy from Protestantism I have ever met, save perhaps those who converted on account of getting married, have said almost exactly this to me. In our parish we have one fellow in the seminary and another entering this coming August (not bad for a tiny little parish!) who are both former evangelicals, Baptists I think. Both of them are walking encyclopedias of the Fathers (as well as walking concordances, a facility they picked up during their faith journey to Orthodoxy. They seem especially taken by +Irenaeous, +Gregory Nazianzus +Symeon the New Theologian and +Gregory Palamas.
LOL. It's really because of bad knees. ;O)