[trog]

There is a massive reason for some people to log on which seems fairly new (last few years) : b2b sales.

I watch our sales people use LinkedIn heavily for prospecting and cold reach outs. They rely on tools like Lusha which are basically databases of contact information that are sold on a subscription basis.

If you work in management or any sort of position where it's possible you're involved in procurement and that is reflected in your job title you will get hounded incessantly by people - sometimes directly on LinkedIn but more often they /found/ you on LinkedIn and then paid Lusha or one of the other contact database tools for your email address and contact info.

Fwiw you can opt out of Lusha. I tried it and the number of inbound calls and emails I got dropped significantly.