Nobody uses this kind of greeting any more, well for sure maybe some of the older generation do, or maybe some of the younger generation who have been brought up in more upper class environments. That's not to say that people from more working class backgrounds don't use this kind of language, but generally I would say that across the board, this kind of language is a bit old fashioned and unnecessarily formal, even in some formal situations. Of course not everyone would agree with me, it's just in my experience of 42 years I can say I came across this kind of talk maybe only a handful of times.