You really do have to distinguish between the correct and incorrect use cases of specialized language to avoid going down a weird rabbit hole.
Creepy abusive guy who uses therapy speak for manipulation isn't an indictment of therapy speak in its intended usage, where it provides tools to process and improve on thought patterns which are otherwise harmful to the patient.
Weirdo reactionary pseudofeminist who thinks turning a penis into a vagina is a reification of patriarchy because their "boundaries" extend into strangers' bodies is not an argument against the correct application of feminist theory.
Guy who thinks "amab = penis" and "afab = uterus" and spins bioessentialist nonsense from that starting point only makes it more important to center that birth gender assignment is a political and social power structure rather than an accurate reflection of biology.
When you're in obscure online spaces a lot it's probable that you'll see misuse of terms more than you see the correct usage just because you have a higher rate of encounters with malicious and/or clueless people. That does not mean the terms are bad, it means you're on the website that made the skinny capitalist guy from the Lorax movie into an avatar of multiversal selfcest through telephone games.