Hanoi's French Quarter is the same way, and I'm glad the local women are hip to the game. They'll ask you "where are you staying?" If you are anywhere near Hoan Kiem Lake they will assume you are a broke backpacker and ghost you. When I was staying at a serviced apartment at West Lake (a more upscale neighborhood where foreign white-collar expats live) Tinder matches switched to "OK I come to your place tonight."
>>>One other thing that the article dangerously omits is the fact that food hygiene and/or safety testing is still pretty much non-existent even in the richest parts of Vietnam.
I've also spent about 6 months in Vietnam, cumulatively over 6 six trips. I've gotten brutally sick on 5 of those 6 visits. The lack of sanitation is the #1 reason I don't think I could EVER live there, no matter how much money I had. You can't escape the E.Coli in every ice cube and tap water supply, the open-sewer streets, and the choking air pollution.