I agree about that specific example, but I think a lot of people are missing the point.

> Developers own the products they build for customers, and charge a monthly fee for access.

So, what you're seeing is what a single user is expecting to pay. This is not like a contracting / free-lance website where someone hires you under contract to do some development work.

Instead, you create the SaaS or whatever, and then you have at least x number of people that are willing to pay $y/month for said service; your market is not limited to the people who use this website, too.

I think it's really just a way for people to find what projects people want, and what a select few are willing to pay for it.