It's very dated here, but it was never popular. We don't have a large English-speaking population, and most Catholics aren't English speakers, which might account for it.
I find it unattractive and very inconvenient: it's long, so it'd need a nn, but all the options are NMS.
Vera is totally dated,
Ron is unattractive on males and worse on females,
Nic or
Nick or
Nicky etc would get lost in all the throngs of
Nicole people, and then there's the possibility of someone with a sense of humour doing things with Nica's knickers ...