I actually prefer not to call myself a vegan IRL both because of the issue you’re describing and because veganism is (rightfully) associated with having a toxic and intolerant culture. The only reason I said “vegan except fish” in my comment is because the title of the study used the word “vegan” and because the study was talking about veganism in a purely dietary/scientific lens, not an ethical one. I think this was a pretty reasonable thing to do.