I don't know the details of the stackexchange case linked above. But, in general, it doesn't seem that complicated to me. The language you are using -- "weaponized pronouns" -- is pretty distorted.
If one is aware of how someone prefers to be called and the preference is completely reasonable (such as a trans individual preferring their transitioned pronoun), then one is simply being an asshole by refusing. Not only that, they are doing so to a group that has historically been treated terribly by most of society -- essentially kicking someone while they are down.
Innocent mistakes are one thing, but stubborn refusal to treat someone decently is inexcusable.
P.S. I understand a very small number of vocal individuals may take things past requests for treating people decently, but let's not throw out the baby with the bathwater.
If one is aware of how someone prefers to be called and the preference is completely reasonable (such as a trans individual preferring their transitioned pronoun), then one is simply being an asshole by refusing. Not only that, they are doing so to a group that has historically been treated terribly by most of society -- essentially kicking someone while they are down.
Innocent mistakes are one thing, but stubborn refusal to treat someone decently is inexcusable.
P.S. I understand a very small number of vocal individuals may take things past requests for treating people decently, but let's not throw out the baby with the bathwater.