Half the people on craigslist are cops trying to catch hookers and illegal drug traffic(ers) Be aware of rip-offs and scams, also. It IS totally legal if you are. Powder mold can be controlled by Serenade (bacillius subtilis), but it's a bitch. I'd never even seen powder mold in CO until 2 years ago. I'm growing a grape haze strain that is totally resistant to it- but my other strains require vigilance in order to not contaminate my ladies.