Besides, LinkedIn is already sharing every last bit of their users' information with the highest bidder.
One can’t both hand over data freely to a service (in this case Linkedin) and also subsequently prevent all sharing of that data. Or to put it another way, you can’t both put your information on a public billboard hoping a recruiter sees it to offer you a job AND keep it strangers private from people you hope won’t misuse it.
Imagine being denied job opportunities because some company has analyzed the careers of the last 25 generations of your ancestors and deemed your lineage to be inadequate?
This is also a clear case where GDPR would come in. This is personal data, whether intentional or not, and the scraper is obliged to conform to EU laws if they scrape data on EU citizens - including eg information rights and deletion.
The question at hand is whether or not SiteB (or more appropriately CompanyB) is able to automatically download the content on SiteA or have to make an intern manually copy and paste the data into a spreadsheet.
However restricting access to public information on the internet will benefit only the established titans. So this ruling is great news.
Human beings are hardwired to do things that they see others doing unless there is a really clear connection between the actions and disaster. There has to be another mechanism to deal with probably small, but unquantifiable risks.
I think that's a reasonable balance - you can scrape data, but not personal data without consent of the scraped person.