Look at platforms like Udemy (selling online courses). They take 50% of your revenue and not only that, they also control the prices of your course by selling

Look at platforms like Udemy (selling online courses). They take 50% of your revenue and not only that, they also control the prices of your course by selling them for $10 year round (of which you'll get $5 for a ~5-10 hour video course that takes 4 months to make and it's also expected you offer 24/7/365 support). Yes I know you can opt out of these things but then you're hidden from search results by default which defeats the entire purpose of using a marketplace. As a content creator I despise marketplaces because you lose control over your business. You don't even get to contact your customers directly since details like emails are hidden from you and you either make or it fail based on their search engine's ranking algorithm. As a content consumer, marketplaces make it pretty easy to find good things, but at the same time I feel like if you have good content, people would find you without a marketplace. I can't wait until these marketplaces eventually bust from content creators just picking up and selling stuff on their own.