I gave you perfectly accurate advice on an issue that you didn't even know to ask, namely the distinction between USB host and peripheral. You refused to take this on board, you launched into your vitriol immediately and indeed rejected the whole notion of any distinction, insisting that both devices were identical. Don't bother to deny it, the details are in the Google archive for anyone to see.
Well, I never advertise. Nor do I even have a web site. All my work is either repeat business or by referral and I'm still in the position of turning down a fair proportion of work offered. Doesn't that tell you something?
As for my clients they're principally manufacturing or engineering operations. I'm working on, modifying or actually designing and building unusual 'peripherals' on a regular basis. The only office based regular I have is a local architect and that's only because I have some knowledge of AutoCAD.