Hi. Thanks for taking time to write such a long post to me. I liked reading through it :) I will try to answer most of your questions. I know the PDFs included errors, since I am using information found online, which often contradict from source to source. I know that taking donations (with two paid projects) is a grey area with my PDFs since they include sources taken from other areas online. But I hope I have made them somewhat in the area of fair use. If some of the sources I have used have issues with some of my PDFs, then I would remove their content without hesitation. I have taken a break from making these PDFs. If I start making more of these then I do not know what the subject will be.
I respect your privacy about giving away information. I will make the two paid PDFs (PS2 and Arcade vol.2) free for some days for you to download :) I do not need any monetary compensation. I'm just happy you find the PDFs useful :)
Daniel