Would the class-shop sellers would frown on people reselling their goods to people of other classes? (e.g. ranger, druid, monk shops)
Reselling items from class-specific shops
Providing they found out, one would assume so! Best learnt IG.
Note that farming for profit is a bug and must be reported. (ie, buying X at one shop for 5gp, selling X at another for 10gp)