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There have always been fundamental problems with running marketplaces reliably on hive. The main issue is that eBay is competing for the sales and it has an extensive team of support that offer dispute negotiation, plus payosl holds funds in escrow.
However, the new vsc system offers a way for us to create a real decentralised competitor to eBay. It will take quite a lot of work to perfect, but it's certainly possible via mark contracts.

We had all that, and they all died from lack of interest.

They never provided the necessary level of features to enable them to compete with ebay, even remotely.. but that may change soon.