The US English quotes are not the same as the ones in your post, Vianney. The Microsoft "Magic Quotes" are notorious for blowing up in html. (Meaning that they don't convert properly, and cause unintended behavior. )
Pasted from US English MS Word (recent version, I can't find help>about in this stupid new UI to figure out which version.) ----
Here is a test of “quotes
Pasted from US English MS Word (recent version, I can't find help>about in this stupid new UI to figure out which version.) ----
Here is a test of “quotes