OP used the pronoun "they" incorrectly referring to JJB because we know JJB is a dude. You're also wrong when you say that they is only plural.
Singular 'They' | Merriam-Webster
Not only were you wrong, you're so laughably wrong that there's tons of precedent that shows you to be wrong. This is like being 2+2=5 tier wrong. Also, you're a necromancer. You vomited your incorrectness into a dead thread without dedicating a single braincell to checking whether or not the resurrection was warranted, when you yourself know very well that the previous post you made on this account was that thing you said in this 5 month old thread 5 months ago. So, you logged in today (probably after months of not browsing the forums), saw the orange notification dot, and, like a goober trained on tiktok brainrot, you splurged a post without thinking into a dead thread. Congratulations. You've contributed absolutely nothing to a discussion that required no one's input anymore.