Not necessarily. If the readme says that you can use the item for both personal and commercial use (and RDNA allows both), then you can use it in your commercial uploads, or in your freebies.

I can't remember what Mapps' terms are, but you can check his site, or send him a site mail.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi