Hi Lee,
I must admit I was bing pretty pointed in my response.
Art , as you point out is made honestly in some contexts.
For most of the discussion we were talking about Malevich in the context
of "Officalal Art".
He won't be showing up at any community center, and was making art for a
well-defined audience.
Art has many sides, but I believe we were talking about "Professional Art"
the art that has only one context, and that is the context of Art History
as written by Art Gallerists and Vested Curators.
I hope that helps the understanding here,
Eric