Welcome to Lufthansa.
Rather than bump the other thread, I thought you'd appreciate knowing that further to our discussion on the ban of guesting pax on another flight to the lounge in Star, I recently learned that Turkish Airlines chose not to enhance this for their own Elite and Elite Plus, who can continue to guest anyone on a Star flight to their lounges. Star Gold's do not retain the privilege.
I'd say it's another point to put into perspective how much LH truly hate their HON/SEN members.