FYI LinkedIn actually won that case after appealing once more: https://en.wikipedia.org/wiki/HiQ_Labs_v._LinkedIn
I see they went to the Supreme Court who kicked it back to the Ninth who then re-affirmed their position that HiQ Labs was not in violation of the CFAA.
[0] https://www.natlawreview.com/article/court-finds-hiq-breache...
[1] https://www.natlawreview.com/article/hiq-and-linkedin-reach-...
So at a federal level, it seems relatively clear. The only uncertainty is on the state level.