All is lost?
If you asking about technical details, you can check our current projects in this area. We have great back-end and UI/UX design for all of them, cause we know how to develop it and be friendly for ended-users.
p.s. Honestly, it seems to me that you are one of those who understand the real potential of this idea, but regrets that this market will not be changed by him (due to lack of resources, skills, team, development).
Yes, I understand this market and this is why I would not want to hold millions worth of skins on behalf of someone else. If Valve risks losing lawsuit against Washington State, they might be forced to agree to close the APIs. What then? I think that won't happen, but it could.
My questions are really about the skincoin itself-- How will the skincoin work? Will it live on the ethereum network? Who will cover tx fees? Will you charge tx fees? How will your bots work? How can skincoin owners know the underlying asset - skins - are actually there?
I got you. Steam API don't needed for Skincoin transactions. Skincoin live on the ethereum network. Tx fees will pay to ethereum miners, who confirm all transactions in ethereum network.