I don’t share @concerneduser 's concern about JS for this forum in particular but I think you may be unintentionally being (or at least coming across as) somewhat overly reductive/dismissive (and black & white) in your characterization of their concerns.
While others elsewhere may have made extreme blanket statements about the ‘badness’ of JS, I don’t think that @concerneduser did that here. They didn’t proclaim ‘Javascript BAD, Techlore BAD for using JS’, they asked a (mildly loaded) question, based on two specific assumptions they have about JS:
Do you disagree with either of those specific assertions?
As far as I understand it, neither of those statements is especially controversial.