I think I signed up to LinkedIn through a fellow Pelican's link.... before I left the corporate world ... prolly 15-16 years ago.... never used it. As I recall, I didn't see how to remove my account, so I just changed all the info. I stopped receiving emails after many years.... eventually. A "head hunter" who put me in a job down in FL after I left IBM also contacted me after 25 years as soon as I signed up too.
If anyone needs a rancher named Hoss ... I'm probably still on there

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