i know that there are some people who are good at rendering and some people are bad at it.. but rendering isnt about just cutting an image out and making sure all the edges are fine.. it isnt about taking out the smoke from a gun or some thing... it had more like making the image a better quality... im not cricitisizing or giving any one a bad rep.. i just belive a true renderer does more to his render then just cut it out...
most people know this allready, many remove text from their renders and do minor filtering to it... atleast I do