Still nowhere for people in USA to trade?
Unfortunately not - or lets say no official places - there is still only Liquid Exchange. There have been some efforts made to get listed in other exchanges, but nothing to report yet.
However I have been buying CHI for some (US) people at Liquid and still offer to do so. If you are interested doing it this way, you can reach out to me here via PM or in XAYA Telegram/Discord/Forums under this very nick.
It just needs to be accepted by any Seychelles-based exchange for US residents to be able to buy & sell. For that matter, any exchange would be fine unless its US-based or NY-based. Money laundering, crypto rinsing and all assorted KYC bullshit everyone is fed with, is just for giggles. It makes no sense for a shitcoin to abide by stupid made-up regulations because no one cares about it, let alone launders money through it.