Speaking as someone who did like the Mommy kink. The way it is talked about in this specific sub is extremely off putting. It is really no surprise that so many dommes see it in a negative light. You may want a relationship that is Mommy in the bedroom and equal in other aspects. But, many of the guys who post here go on about finding a perfect, pure mommy who will care for them and teach them kinky things. But then they also say things about not actually wanting to be long term with said mommy. I see posts like this so often. About just using women to fulfill every possible need in the guise of them being their mommy.

So, sure, you can absolutely do Mommydom stuff in a way that is loving and nice. But, I wouldn't accuse dommes of kink shaming or expressing their disgust with the way they are treated by some of the subs who seek less loving mommy relationships.