Exceptionally valuable. I got most of my jobs through LinkedIn recruiters reaching out, including from big tech companies as well. I never post or look at the timeline feed however, which is as atrocious as any other social media feed.

However, some people have told me that they post often and build up their own audience on LinkedIn that they can then sell to, whether it be a product, course, service or others. Through this, they've made a lot of money.