Buying competitors is not insane or a weird business practice. He was probably advised to do so by the competent people under him

And what did he do to keep G+ from becoming a valid competitor? It killed itself. I signed up but there was no network effect and it kind of sucked. Google had a way of shutting down all their product attempts too

If you read Internal Tech Emails (on X), you’ll see that he was the driving force behind the key acquisitions (successes as well as failures such as Snap).

I am also not saying that zuck is a prescient genius who is more capable than other CEOs. I am just saying that it doesn't seem correct to me to say that he is "a textbook case of somebody who got lucky once."