I’m nearing 100% on the research trees. If I scrap my labs, do I lose points on the leaderboard?
Board is essentially meaningless. If you are worried about it you can use the population to build other stuff.
Yes you will lose points on the grandmaster board. However you can use the work force to build other structures instead and therefor regain the poins.
On the main servers, you want to keep 100 RP for optimum ship blueprint research times.
No idea how/if they translated that to the crack server, though.