What makes a zero-commission storefront sustainable?

We are building TrendHub with a free entry option for independent sellers and 0% sales commission charged by TrendHub. Payment providers and other external services can still have their own fees.

For sellers, which model feels fairest and most transparent?

• optional subscriptions for advanced tools

• paid promotion that never changes organic recommendations

• usage-based fees for specific automation

• payment-service revenue, disclosed separately

• something else

What would make you trust that ‘0% commission’ is a real product rule rather than marketing fine print?