[masaegu]

There is simply no "rule" regarding when to use the 「・」. We write New York as ニューヨーク, never as ニュー・ヨーク. We just follow what we are used to seeing.

As for ヤブロネッツ・ナッド・ニソウ, it's a name most Japanese will never see in their life time, so we really couldn't care less if you used the dots or not.

NOTE: I hate to look like I'm following you around. If you prefer having others responding, I'm perfectly fine with it. I do warn you, though, that there are only about 2 other members who could answer the kinds of questions that you have been asking.