I really think if these markets are to be functional they need to use btc, at least at first.
I understand your points, but in order to accept other currencies/blockchains we would need atomic cross-chain transactions. I know there are a few people looking into that but as far as I know there are no POC's out yet let alone a proven solution. For instance, how would we enforce a BTC 3 party multi-sig from within Crave. Actually, I do know one way that we could do it, but it would require that users run a full BTC node in addition to the Crave wallet and it is relatively complex to build. The fact that it is challenging doesn't mean a flat "no", but maybe it is something to put on the roadmap to look into after the market release with the understanding that it could be weeks or months of R&D work to build and test the solution.
thanks for brief answer, imo it would be waste of time building atomic cross-chain transactions architecture at this point of time. maybe Long term yes. After Urge markets are dropped i am sure ppl will build their business around it. ALT price volatility didn't stop people using drk before, ppl do adopt you know.
Very, very few people use DRK for these types of markets, for the exact reasons I outlined. I don't use these types of markets myself but I do follow them closely as I find them interesting. Go to r/darknetmarkets and make a post about using an alt, everybody will laugh and scoff at you. Now, Crave will be different since it is providing its own infrastructure to build markets devoted and dependent on itself, so we will just have to wait and see if people are open to the idea and jump on board.
The hard part is getting vendors on board, if you can do that customers will follow.