Not always flawless, but currently undergoing a review bombing campaign by people who would rather burn down one of the internet's most useful tools for trans safety than accept that a small portion of trans people were saying intensely transphobic things about trans women, but cushioned in progressive language. Framing this as "anti-transmasc" is lumping all transmasc people in with those specific people and disregarding the many, many transmasc people who are flagged green, and I fully believe most people rallying against this extension have been taken for a ride.
Vital now more than ever.