In reply to Louis.

If a plugin is just garbage, a placeholder trying to persuade people to buy something different, then there's a review system so that the people misled by it can say so. Unless you have a decent free offering, you'll hurt your own attempts to sell something else.

Making wordpress.org a place that takes payments is a terrible idea. There might be something of the Wild West about .org, but concreting it over and replacing it with an official corporate monopoly would be much worse. And I doubt over-stretched people at .org want to get into all the consequences of becoming a co-vendor.