oh interesting, the idea is that being a feminist is more than just about beliefs, it implies something more, like being an activist ...
I tend to think identifying as a feminist is a lower bar, it just signifies you are in favor of equal rights among genders. I would have no problem identifying as a feminist just broadly - like on a bio, or in conversation.
I have to think about your meaning more, though - I feel like I have some sense of that, it's maybe a bit like being "vegan" - it implies not just a belief, but maybe also actions you take. Perhaps being a feminist implies something like that in your world, that you are actively engaged in the feminist movement - whether organizing, theorizing, etc.
Either way, thanks for expanding my mind!