Anonimac- that is a proper Etro content tag. Collar tags get pulled off all the time, i wouldn't worry about that if it is the only issue. Quality is pretty good, but what depends on what you want to compare it to? It's not top tier, but it is decent quality.
On the Canali are you talking about the Woolmark tag? I have seen a few Canali pieces using Woolmark wool.