In fact, some locations have seen the DCC ripoff increase, such as the SkyCity Marriott between 2015 and 2016. I have more recent examples (from this year), but I don't post since nothing had changed in the 2 years since the original post.

I can assure the readers of this thread DCC is alive and well in Hong Kong in 2016 for restaurants, shops, and hotels. I can't comment on changes that might have taken place at Greyhound Cafe. At least in 2014, they had non-compliant terminals that did not allow any way to opt-out of DCC.