“Marketplace are a people business so this is kind of the the background that you need to have to to build a business like that... Marketplace are a wonderful business because you you don't need to build a ton of features you just need to build out the people”

Marketplaces are a people business, not a features business

Coming at marketplaces from a typical SaaS founder mindset (build features, sell features) is exactly why bootstrappers fail at them. The product is intentionally slim; the work is recruiting, vetting, and curating the human supply side. If your strength is software/design and not people-work, marketplaces will fight you. If your strength is community / audience / sales, marketplaces are a perfect fit — even with little coding skill.