[AlexH]

I think it's because programs like PSP etc all have tools which allow you to do things faster but usually with less quality in the final product.
Even if the person uses it for a base and then goes back and recovers whatever they've done it is seen by other people as sort of "cheating" in making them.
Although I don't see why people wouldn't use them if they could still get a nice final product with it. Why pass up chances you are given?