Let's say I stole a pen, drew a picture and the picture turned out to be a 'masterpiece'. Now someone bought the picture from me for $1million, and the pen owner sues me, what will the pen owner get? Probably a short jail term on my part and maybe $5,000. But I'll still be a millionaire, because my creative work is mine, and the stolen pen is another issue.
Now, duhville is not even asking for money, just acknowledgement, how bad can that be? And does it matter that duhville might have even stolen a camera to take the picture? What's all this about pirated software, etc etc...
Duhville, please keep us informed of the outcome so that as a community, we will know how we can approach the big players when they 'shortchange' us. I find that the letter you wrote is most pleasant can certainly deserves a reply, whether positive or not. All the best for us amatuers and professionals.