This page and some others say things like this:
The Agreement [of 2009] provides for a mutual visa-free access to the nationals of the Russian Federation and permanent residents of the Hong Kong SAR (holders of the Hong Kong SAR passport) for a stay of up to 14 days in the area of the Hong Kong SAR and the territory of the Russian Federation respectively.
What does that mean for Hong Kong SAR passport holders who are permanently residing in another country (e.g. in North America)? Practically speaking, upon trying to enter Russia – are travellers asked to present any other documents other than Hong Kong SAR passport? I had asked a similar question from a different angle, the emphasis here is on the following – are there any other documents that are required as proof of residence in Hong Kong, besides the HKsar passport, and whether that ever becomes an issue at the border...