If you think setting it min/max globally is better, then I'll defer to you, right now I can't think of a scenario. However, you never know what future developers want. I think giving the option to developers now would make it easier down the line.
I'm not sure having an empty task bar is a good idea. Don't you think it'll look weird to users when all they see is an icon in the taskbar? Ideally, they'd need some kind of indicator to tell them which window it is. Otherwise they'd have to click through possibly multiple taskbars to figure out which one they wanted. If a user works on multiple Word documents and they are all "Untitled", how would they know which one they really want? That's why Microsoft at least increments the document. However, I don't have a better solution.
You guys do an awesome job of support!