Because it's easy to tweet "just had dinner at grandmas, was great!" and much much harder to make an insightful statement in those 160 characters or whatever still-short limit it is now.
Almost all the posts I've seen on Twitter that were actually worth reading, were cut up in tens of pieces, each with their own sub-thread attached. Basically making the whole content unreadable without using threadreader.
To me it's not surprising people who are disjointed and thoughtless thrive in this environment but for me the ratio of pure shit vs insightful stuff is so low I've always hated this platform with a passion.
I don't have an account there and I never look at it, if there's something worthwhile reading on twitter I count on Hacker News to bring it to my attention.
Thing is, to you, that's not "insightful" (whatever you mean by that.) But to some of Malcolm's 30 followers, it's an interesting piece of content. To future historians, it might fill in a tiny piece of context they were missing when they're trying to piece together how Malcolm's life turned out.
I don't get the hate - not everything has to be insightful and not everything is for you. Just ignore it and get your "insightful" content elsewhere.
As someone watching from the sidelines, a lot of the social change Twitter created was negative, and harder to see from inside the social media sphere. People getting dumber, angrier, and more dependent. Personally, I'd love to see it all go away, so I'm fist-pumping every time Musk does something stupid. Unfortunately, I haven't really seen any evidence that makes me believe he can actually kill it, let alone what it represents.