I've noticed a lot of drama going around, so I'd like to point out a few unbiased facts:
Tracing is not hard, it however may be time consuming and/or tedious, and it allows you to create a high as resolution image as you want if your source is a bit small.
Remxing etc, is important to our culture, it permeates our culture and mutates it - except for the rate of mutation of culture online advances at similar rate to the Zimbabwean inflation rate, and tracing can be remixing.
Unless you are changing the composition, putting the work in a new context, using it as a smaller part of a greater whole, using it to make a comment on society/politics/etc, or in some way cleverly altering it as to send a different message, or somehow creating something new with it, then really, the only thing that is happening is that you are simply recreating the work. (This could almost be summed up as to not putting your own original thought to it - thus nothing of your contribution, creation, and nothing to your credit).
Recreating someone else's work is pointless, you are not contributng to the artwork, nor are you adding anything of value to it.
Simply altering/using different colours to the original is not contributing to the work, that would be like me taking a famous photo, and changing the saturation, or contrast, or turning into a black and whie and posting it up.
It may be art, but it is not srt by you, such a recreation is merely a bootleg (like bootleg figurines, shirts, and merchandies, etc), as you have not added artistic value of your own to it.
I say this myself have traced an orphaned work (
en.wikipedia.org/wiki/Orphaned…) fan art once, it was something like 250 pixels x 80 pixels black and white line art, with heavy jpeg artefacting, I traced/redrew it with the pen tool, then stroked the paths at much higher resolution, then I coloured and shaded the image myself, thought up of a scenario, inserted a sunset beach scene, and colour graded to match the photo, then matched the grain, it made a great desktop background at high resolution.
The things I have done to the original artwork: Improved upon the original's technical quality, coloured & shaded (not present in original), changed the composition, contributed to the artwork by creating a context (none in the original), I had definately added to value of it and created something new with it.
My motivation was that I happened to really like this character, and the pose was wonderful, but the resolution and quality and the fact that it was only line art wasn't satisfying, I needed a better image of it, it turned out to be a great desktop image (for me).
I hope this has been helpful for some of you - tracing -is- okay, but tracing is merely a tool, not art in itself, not creation in itself.
Creation comes from a person, not from a method, if all you have is method, there is no creation and and nothing original and no art (on your part).
As for tracing being a tool, it is more specifically a tool to separate a composition to assist in your own composition.