>>20693593It's a kind of mental illness.
You see, when somebody is in a hopeless and desperate situation in life, it's very common for them to cope with their insignificance by attaching themselves to a brand - be it a sports team, an electronics manufacturer, or in this case a vtuber agency - and living vicariously through them.
Of course, it follows that ANYTHING that threatens to compete with their chosen brand or upset its standing in any way becomes the enemy; remember, these people have internalized their brand of choice to such a level that they see any sort of challenge to the brand as an attack upon themselves.
This is a very common phenomenon in third world countries, as the grammar in the majority of those posts can attest.