I think the reason they can't share is more due to Dillin will go after Taylor and the rest if they did or even figure out who they are by association with the information they have.
I mean this is Dillin, he has gone after former associates for way less so I can see why they refuse to say anything, because no doubt Taylor after dating him for so long probably knows exactly how often he reads the farms, and what is said about him despite him "not caring."
Besides I am fairly certain we can piece together what happened from just how Dillin acted alone in the past.
They probably were talking about stuff and Dillin most likely belittle them multiple times for a long period possibly even screaming at them for the dumbest of shit. Eventually they got to a hot button issue that Taylor gave a view dillin didn't like, it probably started a heated discussion where dillin probably was just going so far over the top that taylor finally snapped after he said something that went too far personally which hurt them, and like all of dillin's previous associations got sick of his shit and left.
I bet you if that guy responds again he probably going to say that about what happened because that's how Dillin has always acted even when the thread started.
He talks shit, spergs out, goes over the line, pisses friends off who leaves, repeat.