A few weeks ago, there was a discussion about shaders, textures, and reliability on vendors to use them properly.  Suffice it to say, the thread has since made me wary of buying user-created content from this site or anywhere else.  In fact, I've had first-hand experience with just how poorly done they can be, as explained by another artist while working with a dress I once bought.  Unfortunately, I'm still very new to learning how materials and shaders work, and don't yet know enough to identify or fix such problems.

Is resolving those issues just a matter of learning how to use the material room and understanding how shaders and textures work?