Very few people complain about things that don't affect them
You have dealt with a limited (and appearantly awesome) group of people then.
When I was smoking, I had people INSIDE complaining about me having a smoke outside. I had one woman start coughing from 20' upwind when she saw my cigarette And many such similar
The OP was told that the policy is in place because of "other substances", not clouds. Yet here are the cloud haters, going on and ON...