Reply #1: Pride or arrogance is considered a sin

[undeterred]

but usually it isn't taken as far as extending to compliments. The Amish dress very simply and uniformly so as not to draw attention to themselves and they would call clothing that is beautiful for its own sake "proud". That's the closest thing I can think of.

For teenagers, where self esteem is all over the place, I would think sincere compliments are a very good thing. Sounds like a way too much emphasis on the negative to me.