Each to their own play style. Nothing capable in the game is right or wrong (cheating), so long as you did not use console commands to achieve it (my definition of cheating).

Great tips. I usually have one seed just for bosses and don't kill any bosses on any other seed. I usually use my favorite seed for creative builds and other seeds for resources so I don't strip mine my creative seed too much. The campaign line is sort of meh for me at the moment, but there's room for the dev's to do a lot with the worlds to create story content.