I think it's a fucking insanely good idea. The greatest benefit we reap is we are not seen as targeting feminism as a whole when we talk about it, most of us aren't here to hate on feminists and especially on women in general. Beyond that it is pretty easy to highlight that these elements are after supremacy, shit even some feminists hate them, the fact that they are feminists should be an after thought. Then our remarks aren't willfully taken out of context by right wing feminists to portray us as women haters and not accidentally taken out of context from the "casual" feminist as an attack against all feminists/women. The added bonus is that "supremacy" is a buzz word that every sane person can get behind and clearly identify as bad/evil/wrong and we don't need to explain to anyone why we are fighting a "supremacist".

Lets call them what they are! Lets see them pull this SPLC crap when we are fighting supremacists!