Another thing that ties into it is his "expert" use of the motte-and-bailey fallacy. I remember someone once said that the only royal thing about the King of Hate is his gout, I'd argue that another thing is that he uses the motte-and-bailey fallacy so much you'd swear he lived in a motte-and-bailey style castle.
A recent example - when someone once asked him why Khet doesn't just do grocery shopping after work, just little by little, so they don't have to spend a lot of time on just shopping on Little Phillip's Big Day Off. He then said that she doesn't wanna spend an hour after work just shopping after she spent the entire day at work in a grocery store. Then a lot of tractors were pointing out how disingenuous he was, completely ignoring that the bitch heer asked about buying little-by-little rather than doing a week's worth of shopping. Not to mention, how much shit could a childless couple with one cat possibly buy for them to take multiple hours a week just doing their weekly shopping. Then on the prestream that was on the Saturday before Easter he dunked on us kid detractors by pigsplaining how we're all just dumb kids who never had to buy things for a household and how he stood in line for 35 minutes when he did his shopping the day earlier. I don't doubt that Dave spent half an hour just standing in line while shopping... because that was the Friday before Easter. Stores are packed full of people on that day, but he used an extraordinary circumstance like that to convince his wheelchairs (and himself, let's be honest) that this happens commonly to Mature Adults who Buy Things for a Household™