Been building a sneaker trading community and wanted to share what actually tanks deals between collectors:

1. No condition photos before negotiating price. Always ask for insole wear, outsole photos, and box condition upfront. "9/10" means something different to everyone.

2. Ghosting after agreeing on a price. If you commit to a trade or bid, follow through. Reputation compounds fast in small communities — burn one person and word spreads.

3. No paper trail. Whether it's a straight sale, a trade, or a bid war, keep the conversation in one thread. It protects both sides if something goes sideways later.

Built SoleXchange around fixing exactly this — listings, a live bidding room, and trade chat all in one place instead of scattered across DMs and group chats. If you collect or flip sneakers, come check it out.