Charles is a good guy. I don’t know his “title”, but as far as I know, he’s “in charge” of the chipguide, and as such, he keeps a keen eye out for missing attributions to the materials (images) found on the guide. If he (and others) didn’t, there could be copyright violations. So, while I agree he jumped the gun (you DID acknowledge the guide), give him a break, please. Small misstep on his part.