LinkedIn: got access to your email contacts list, and spammed everyone in it, multiple times. (This is the reason I do not use LinkedIn, is I do not support a company that is founded on sending out spam).
I will never ever create a LinkedIn account, the hard sell techniques, spam to my inbox and aggressiveness is so off-putting that I would rather eat my own barf. This whole company and its power users reeks to me from outside like a scene from Glengarry Glen Ross: a bunch of hustlers trying to fake-it-till-they-make-it, appear super-important and trump up their bogus businessperson profiles and pretend connections.
you not missing anything. The LI I enjoyed some 5-8 years ago is nothing like LI today. I got literally blocked twice because someone was spreading misinformation re vaccines, and when I point it out that LI is not even a place for this, I got reported by so many anti vax that my account got automatically suspended.