[rewq4321]

> That data is literally given away to everyone but some people or organizations can't have it?

It's often a question of quantity. LinkedIn probably doesn't care about you scraping a few profiles, but if you're harvesting every bit of their publicly-available data, then they get a little scared that you're building something that's going to compete with them.

Same with Instagram, or Facebook, for example. Though in this case it's probably more of a user-privacy issue - at least that's what they say.

It's not really weird logic to me - seems to make sense.

> If you want to control access to it, maybe at least require people to register

Most of the time they can't do this because they need the Google traffic. LinkedIn wants a result in the SERP for Bob Smith when you search for "Bob Smith" because that helps them get signups. Google won't list the page if that content is gated by a sign-in/register page.