It's far less nuanced than that. It's the "old man shouts at cloud" meme, grumpy, lazy, old man wants to communicate to the word using methods he already knows.
I suspect it's also about being visibly popular compared to other people on the platform. What good are "ratings" if you are the only person on a given rating system.
He also likes to retweet, probably likes to doom scroll as well. He won't get the same endorphin rushes from some boring government app.