Milton,
I don't think Palabra de Dios meant any disrespect when he used the term "mercenary." I got the impression that he meant to say that Bill certainly gets around in the metal scene, and that's because he makes a good impression with a lot of bands. It makes perfect sense in this day and age to play with as many bands as possible if you want to make your living solely through music, so I can't fault the guy at all. Here's to a great "Streets" set!
Stay metal. Never rust.
Albert