To be fair, not everyone realizes that many developers are accessible and friendly. To a lot of people, it's comparable to having a problem with a movie and calling the director. Most people don't spend as much time in the tech world as some of us do...
That said, the response to the advice was kind of rude.
The line between jolting sarcasm and unemotional simplicity can be tough to judge on internet discussion boards. I assumed the former, perhaps too hastily given the otherwise cordial nature of this forum, and responded without adequate forethought.
With that said, I still find MikeL's advice rather unhelpful. It's certainly not uncommon for questions such as mine to appear on a forum such as this one. Isn't part of the reason we're all here to share knowledge and experience with one another? I actually did poke around the iSquint forums, briefly, to see if anyone had addressed this issue. My search was far from thorough, but I didn't see this pop up, so I came over here.
I seriously doubt that the developer of even the lesser-known software would be quick to respond to my question. Hell, most of the smaller development companies might not even have an 8-core Mac Pro! In this case, a very popular piece of software probably has, as a matter of fact, very busy developers. I seriously doubt that they would get back to me with any kind of promptness. In any event, my choice of
this forum as the place to solicit an answer puts any knowledge on the subject into the public domain. It is there for the next person who might be curious. On the other hand, personal contact with the developer satisfies only my own curiosity on the subject.
In short, I think MikeL's comment was unhelpful. It was also ambiguously sympathetic. I probably reacted too hastily in my response, and I regret detracting from an otherwise informative discussion. Nevertheless, I don't apologize for bringing forth the original question. In any event, this wasn't meant to turn into a debate about XGrid and the feature in VisualHub, per se. Rather, I wanted to know if a dual quad-core Mac Pro would be max'd out when VisualHub is running. That's all I really cared to know.