Hi Jakke, thanks!
A long run, my idea. But if it goes step by step, time is not my enemy 
I need to construct a USP. LinkedIn of course has it’s weaknesses…
I run a niche job board, much cheaper than LinkedIn advertising. I’m going to keep this close to the community, integrate postings to jobs. After inviting publishers on LinkedIn, maybe that’s another strategy to pull potential community members from Li.