User blog comment:Lia Schiffer/ANIME SPECIAL: 268: Hatred and Jealousy, Orihime's Dilemma/@comment-893506-20100502051518

Plus, it's not a guarantee that everyone would understand the whole honorifics thing. Sure, with Bleach subs online, namely Dattebayo, honorifics is common at this point, but certain licensed subs in other (and older) anime don't even write the honorifics (for example, the character says "Goku-san", while the subs only say "Goku").

I'm not against honorifics in general, and I do watch both dubs and subs, but in my opinion, dubs would sound a bit more awkward with honorifics than they would without.