[djtumolo]

They are placeholders, not final art. I've been working on a game, and I rip sprites from wherever I find them. Not because I am a callous thief, but because the art is temporary until I can get a prototype, and convince an artist to join.

[JoeCortopassi]

You might use them as placeholders, which I have no problem with, but that quote clearly implies using them in shipped products.

[marijn]

"first few simple games" ≠ "shipped products"