Not every instance has been confirmed, but Fremer has a history of posting online in all caps in angry screeds. He did that
on Darko's site (lost to comment section deletion) and
on this forum. The writing style eerily matches his own.
Fremer's usual MO on on YouTube does often use all caps and blunt, rhetorical, begging the question replies.
He did that on a smaller YTer's video on cleaning records. I can't link the comment, but if you sort by newest you can find it easier.
He's had a lot more drama on YT going back years, but we don't need a compendium here unless you want me to recount my recollections as they happened.
As to humility, Fremer's shown he's lacking even a mildly below average amount. He refused to acknowledge he can't hear the difference between analog and digital after praising many MoFi records he hadn't known were cut from DSD.
Despite claiming hi res is audibly superior to CD, he refuses to understand that MQA is lower resolution than CD and not at all the hi res master. Somehow, MQA to him
is the master and any arguments proving otherwise are online babble. Gracious, god forbid he acknowledge what's on streaming like Qobuz are the masters he praises!
He's had 40 years to learn the merits and workings of digital, yet still insists LP's have a superior frequency response than even CD's, doesn't understand the faults with MQA, and umdoubtedly even what would make a DAC good. At this point I just view him as a lolcow.