No, they're not, GE. But the principal remains.
I loathe these babyname threads, because you know that people don't really want to hear other people's 'truth', however much they profess to. Their feelings are bound to get hurt.
It all comes down to groups - socioeconomic/political/religious/whatever.
If you manage to dissuade someone from calling their child, say, Mary, they will call them Jane instead. So IMO these jumpings-on serve no actual purpose, other than to make people feel stupid.