Posting someone elses artwork in it's entirety without permission is NOT 'fair use'. Posting a modified version of it in the same post does NOT make it 'fair use'. The fact that it is not for profit does NOT make it 'fair use'.
Fair uses include commentary, education and of course parody.
His use of the work is to show the original unmodified work and the later modifications. That could easily come under either commentary or possibly under educational use.
He has provided information on the subject of copyright along with citation, he has provided commentary within this thread.
You are making an accusation of copyright infringement. The onus is on you to back it up.
Piru, you have not stated which angle you claim as your rational for calling other people names when you do the same things yourself.
He's not doing the same things himself. Unless you can now prove that Piru is in fact using the artwork outside of fair use, specifically to sell a product.
What's that? You can no more prove that than you could your accusation of everyone here being a hypocrite for disagreeing with you?
Damn, who saw that one coming...
Obvious troll is obvious.