I’m not familiar with Twitter, but putting a cap on how much content you can view on a social media website doesn’t seem like a smart move. If people are seriously doom-scrollers and hit the wall, they won’t be happy. “Free speech absolutists” will be pissed when they see that there’s a limit to their access to “free speech.” Involving paid teirs also looks greedy.
All of that aside, there are better ways to fight bots rather than limiting their daily access. Bots will still be able to scrape a large amount of data daily. Why put a cap on how many posts you can view in a day instead of detecting accounts who are viewing posts at a much higher speed? I doubt most human users will interact at the speed of a bot, and the accounts who do can be verified as real.
Writing a code to detect bots is harder than putting a usage cap, though. That would require employees and Musk actually asking for someone to do something he can’t.
His ego. He thinks he can run the whole website himself with huge improvements.