Then I'm not a typical Vancouverite either.
I don't really use Twitter, but there's not a lot of Canadian content on what I follow on FB/Tumblr--it's mostly stuff related to my own interests. In fact, I don't think I follow anything Vancouver-specific. I don't post pictures of Vancouver in general, because, well, I live here. I've lived here for years. It may be a pretty place, but it's normal to me. When I post pictures I've taken, they're usually of places I've visited, because to me that's way more interesting.
I think the path of verifying the Tumblr/Twitter as Elisa's has been pretty documented (I was skeptical at first, too). That said, I don't find the absence of local colour that unusual--IMO, the sort of person who finds it easier to connect with people online (frequently shy/introverted/geeky/a bit troubled) is often the sort of person who may not be terribly involved in life on a local level (no criticism meant; I'm that sort of person).
That said, FWIW, in the instagram account attached to that Twitter name there is a picture of the Vancouver library (it's a very distinctive building).