I find it impossible to open an account. Here in Australia, I try to, and I never get the confirmation email.
I tried opening one in VN, but it would send me a confirmation phone call, listing a series of numbers in Vietnamese. I know my Vietnamese numbers, but the call was so quick, and I'm not that fast at translating.
I thought about installing a call recorder, just so I could get the numbers, but is is worth it? Last time I successfully had Blued installed, it seemed to have degenerated into a poor man's Grindr, with even fewer free features and a lot more annoying ads.