I agree with most of what you said, but LinkedIn, at least at a superficial level, is the absolute worst to me. It's full of a bunch of inspiration-porn bullshit that I find unbelievably mind-numbing, but also people treat it like Facebook and post a bunch of political and divisive shit on there as well.

I wouldn't care if people posted political and divisive shit, and I would really prefer to delete it, but now a lot of job applications require that you give them a LinkedIn URL. I've debated putting something like "https://linkedin.dont.have.one" or something but I suspect that would immediately put me in the reject pile.

So I'm forced to have an account on a shitty product that is strictly terrible with not a single redeeming feature and it just sort of happened. I guess Microsoft's typical practice, to be fair.