Are you trying to say that a ski patrol close runs to the public so they can ski the slopes themselves?
No, they were posting runs closed to discourage inexperienced skiers from going down them and getting into difficulty, with a full expectation expressed that those who knew the mountain would ski them anyway.
Cammy's point about Ski Patrol being primarily about preventing accidents is true to a point - but where is that point?
The problem on CairnGorm steams from finding people didn't heed 'No Beginners' signs or thought they were good enough not to be beginners, so 'Experts Only' signs were put regularly on terrain that did not warrant them. Thus people would ski the Gunbarrel and think that was OK, it said experts only, OK West Wall next!! You get the idea.
The response to that seems to have been to just post things closed. If the White Lady is posted closed when it is skiable, and CML try to enforce it by ticket removal, people will vote with their feet.
The terrain profile of CairnGorm means this is primarily a 'Gorm problem and not one that is anywhere near so prevalent at the other Scottish Snowsport Areas. This 'problem' in some regards is actually CairnGorm's biggest strength, there is top to bottom riding for just about all ability levels from more confident snow plough turners up.
The more poles, ropes, signs and nets that go up on the mountain, the more controlled CML make it seem, the more people expect every thing to be controlled - every hazard to be marked. More and more clutter on the mountain has not solved the problem of people straying from easier upper mountain terrain onto terrain in which they find themselves in bother on.
Perhaps it's time to go in the other direction and have much of the mountain less controlled, perhaps then people will be less confident about venturing onto terrain their unfamiliar with?