I know what you mean OP, but I’d just ignore it. My name is also one of the hated, ridiculed names about which people say things like someone with that name is a loud fat chavvy Essex girl type, which is far from the case.
It’s part of the overt snobbishness that seems to be allowed on here and is probably the worst aspect of Mumsnet. There’s certain things that people have no shame in being openly judgy about, such as baby names, along with caravans, all inclusive holidays in places like Benidorm and harmless activities like sitting in the front garden. It just says more about them than you.
To avoid being accused of not revealing the name in question, mine is one of Sharon, Tracy, Linda, Joanne, Michelle or Elaine.
It used to get me down, because while my name was very much of it’s time, when I was at school, it was already starting to be seen as unfashionable and unpopular. But I really don't mind it now, it's my name, it hasn't stopped me getting on in life.