I speak English, but I have a lot of difficulty with Chaucer.
The Protestants could care less about 5th century anathemas and the rest of us aren't about to throw over 2000 years of Church teaching.
You are right. We are only concerned with Biblical anathemas. You know, the first century ones. Like the one in Galatians. You know, by the guys who had the actual authority to issue them.
The life expectancy of a fifth century anathema was approximately three years I think. I may be off by a year or two but I read where they had trouble with the wuk joint where it connected to the mreph and it kept wearing out. I may be wrong about this but I'm definitely uncertain.