They're more common in Asian languages, iirc- Chinese at least uses something much like them though far more obtuse (I think it is a different character, not just font anyway)
Aha! I just discovered that I confused their use of title marks 《…》with quotation marks, since American English uses quotation marks for both quotes and titles.
I would have sworn that I had seen the title marks used for both as well, but it has been 10 years or so since I have had any real exposure.
