I totally agree with you, except for the "not leaving LinkedIn" part. I closed my account about 1 year ago after having to deal with spam, bad UI, and useless connections.
Also removing your profile from the network is a bad use experience: I had to send a customer support request to close it because I had more than 500 connections.
I think that I will build something in the near future because I like the idea of collecting connections and achievements concerning my professional career, but I'll never use LinkedIn again.
I also shut down my LinkedIn account. While I was using it, I was never able to get it to completely stop sending me emails. My workaround was to create a filter in Gmail to immediately toss anything from LinkedIn. After a few years of this and recruiter spam on the site itself, I decided it wasn't worth it. Dark patterns, privacy concerns, spam, and worthless recruiters - why bother?
As an additional bonus, I can now view some people's LinkedIn accounts without giving myself away. So I get to look people up without any of the downsides. I guess this benefit will disappear if people start to abandon LinkedIn, but for now it's nice to be able to creep on people anonymously.
Also removing your profile from the network is a bad use experience: I had to send a customer support request to close it because I had more than 500 connections.
I think that I will build something in the near future because I like the idea of collecting connections and achievements concerning my professional career, but I'll never use LinkedIn again.