How else am I supposed to find this stuff?

Many years ago, I'd buy Computer Shopper magazine because it had nothing but ads for computer parts and accessories.

Marketing is how buyers and sellers find each other. Buyers do marketing, too (hence "Wanted" ads). I get unsolicited offers in the mail to buy my house now and then. Employers looking to hire advertise.

I've talked with independent software developers now and then who had created a brilliant product, and lamented to me that nobody was buying it. I'd ask them what marketing they'd done, and they'd blanch and say marketing is evil and they didn't want to do it. Weeeelll, no marketing meant nobody knew about their brilliant product, and that's why nobody bought it. "Build it and they will come" is a stupid Hollywood myth.