Our beloved Etsy Admin, with the help of Etsyians, have created an Etsy Constitution. It outlines things such as: what can & can not be sold on Etsy, Etsy etiquette, buying & selling, and quite a bit more!
If you're new to Etsy, or just need some clarification, take a look- it's worth it!
PS- you can CHIME IN with your own thoughts & opinions & ideas in THIS FORUM POST, started by Rokali. Participation ENCOURAGED. =^.^=
PSS- you can also chime in on this Etsy forum thread about HOW TO REGULATE COMMERCIAL SUPPLIES. (Also started by Rokali).