Just confirmed today by Jamie at snuff.me.uk, they are still shipping to the US. Before we jump to conclusions about MSS we should probably hear from Simon there and find out the details. He may have a specific reason for dropping US shipments that we aren't aware of.
I personally want to see all of the snuff purveyors flourish and profit. Although, we do enjoy the benefits of a very cheap and novel product due highly to its socially covert image. I'd like to see snuff reclaim its rightful position in society and become popular again but that could lead to the end of its modest pricing.
Perhaps we can take a history lesson and use the symantics game. Instead of calling it tobacco snuff, we can refer to it as herbal nose powder or some such nonsense.