I think they prefer "Radical Feminist" or "Gender Critical Feminist". "Trad" sounds "far-right" imo. They've been spending a lot of energy trying to separate themselves from the "far right" (including banning women like me) but looks like it didn't save them in the end...

"Radical Feminist" is meant to distinguish itself from "Liberal Feminist". A liberal feminist might support things like transgenderism, support work in pornography as a healthy option for women who are interested, are generally pro-BDSM for people who are interested. They might think that "feminism is for everyone" and talk about how feminism helps men as well. Radical Feminists consider these things to be harmful for women and take a different stance. That's a huge oversimplification but I'm just explaining that that's part of what the name means in this context.