1. As an R&D machinist and designer, I'm mostly interested in machinist tools.
2. I have a use for machinist tools, so that's what I generally make. I also have a cabinet shop, so I'll make woodworking tools if they are something I need.
3. More participation would be nice, but I don't know how one would achieve that.
Edit; perhaps a section where we can post useful tips for machining and fabricating.