Being told you can’t use certain names

[Ohgawd2020]

My sister in law has told my husband that she doesn’t want us to use certain names. About five in total. I feel really prickly about this but husband is defending sister. Should I be feeling prickly about this?

You can't 'reserve' names. That's totally unreasonable.

But, does it actually make a difference? Are any of her names ones you would like?