Yea, I am cranky in my old age; it is one of the benefits that comes with being a septuagenarian. I have earned it and I will spend it!
I am not too far behind depending on where you are in that path. I am not much of one to give advice; in many cases I am not qualified (experience means
little these days, it's how many followers or posts that make credibility) or don't find the situation worth the time. So, that being said, two pieces of advice. Please ignore as needed!
1) Don't cast your pearls before swine. An oldie but goodie. You won't fix the distasteful system and methods you mention on ebay, here, or anywhere else. If you think it is a trap, scam, or just dishonest, stay away from it. I have an amigo that I see from time to time (83 years of cranky) that loves to tell me "you know, at your age you are old enough to know better!"
2) Stay off ebay. At one time, many years ago it was fun. I bought quite a few old German folding knives from the '50s - '70s and got some at a pretty good price. Now everything on there is "rare", "scarce", "antique", "LNIB except for a few scratches". Broken blades are translated to "reasonable wear due to age". Missing blades are "slight damage from use", and really broken pieces of crap are "needs slight repair, but other than that ready to go!".
My last purchase there was a old German branded "OWL" brand knife. I didn't pick up on the fact that it wasn't branded "Solingen" which my law means it met certain manufacturing and material supply standards. I got the knife, and it was perfect in just about every way. I was ecstatic! I contacted the seller to see if he was going to put other knives up for auction, specifically the OWL branded knife that was brand new. He told me he had no idea, he was a reseller/affiliate of the big knife seller in the Smokey Mountains. He was up front and honest; when they got another larges shipment in from China, they would call him and let him know what they had for sale. If there were more OWL branded knives there, he would call me.
Lesson learned. The knife was marketed as "German OWL brand" and had language like "OWL brand has been making knives for over 100 years" and never crossed the made in Solingen line, nor did they mark the knife or box with "Solingen". And truthfully, the guy I bought the knife from wasn't knife guy at all. He sold all other kinds of stuff like cheap/small high powered flashlights and camping odds and ends, he wasn't even trying to misrepresent his product and he took his ebay promo write up off the box and from the wholesale vendor.