Last month, LEGO and BrickLink updated their terms and conditions impacting resellers and they received some backlash from it. They have recently sent out another email clarifying their stance.
You can still have a personal LEGO Insiders account and a BrickLink account at the same time and use the points as usual. The red flag is repeated patterns of larger scale purchases for commercial resale.
Dear BrickLink® members,
We understand the recent update to the Terms and Conditions may have...