This'll be a long explanation so here's the point. I just found out a knife I bought 4 months ago was faulty at purchase. I asked the guy I got it from for a refund and he said "too late." Is it too late?
Here's the long version:
I bought/traded my NIB Spyderco Tuff + $90 for a used CRK small insingo in October. I'd rather not specify members unless necessary so let's say I got it from Joe. Joe was not the original owner of the insingo and he bought it from "Matt," who was the original owner, in May. I recently sold the insingo to "Charlie," who happens to already have one. When Charlie received mine he informed me that the blade had been substantially over sharpened. I've never handeld an insingo before so I had nothing to compare mine to so I had never noticed the amount of steel that was missing. As far as I can tell, Joe was not aware of this when he bought it from Matt either, so I'm not accusing Joe of witholding this information when he sold it to me. I also talked to Matt and he says he didn't notice that the blade had become over sharpened either. Charlie is now sending me back the insingo and I will be giving him a refund. I asked Joe for a refund as well and he refused, stating that he doesn't know what I've done with it and it's been too long.
Here's a comparison shot Charlie sent me of his insingo on the right and mine on the left:

You can see how much thinner and shorter the blade is, and how much more upswept the tip is.
Here's a picture Joe sent me when I bought it:

And here's a picture from Matt's original sale thread when Joe bought it:

You can see that the blade has been like this since long before I even had it. I talked to a mod and he suggested I post here so what do you folks think? Do I deserve a refund or at least should Joe pay for a replacement blade?
Here's the long version:
I bought/traded my NIB Spyderco Tuff + $90 for a used CRK small insingo in October. I'd rather not specify members unless necessary so let's say I got it from Joe. Joe was not the original owner of the insingo and he bought it from "Matt," who was the original owner, in May. I recently sold the insingo to "Charlie," who happens to already have one. When Charlie received mine he informed me that the blade had been substantially over sharpened. I've never handeld an insingo before so I had nothing to compare mine to so I had never noticed the amount of steel that was missing. As far as I can tell, Joe was not aware of this when he bought it from Matt either, so I'm not accusing Joe of witholding this information when he sold it to me. I also talked to Matt and he says he didn't notice that the blade had become over sharpened either. Charlie is now sending me back the insingo and I will be giving him a refund. I asked Joe for a refund as well and he refused, stating that he doesn't know what I've done with it and it's been too long.
Here's a comparison shot Charlie sent me of his insingo on the right and mine on the left:

You can see how much thinner and shorter the blade is, and how much more upswept the tip is.
Here's a picture Joe sent me when I bought it:

And here's a picture from Matt's original sale thread when Joe bought it:

You can see that the blade has been like this since long before I even had it. I talked to a mod and he suggested I post here so what do you folks think? Do I deserve a refund or at least should Joe pay for a replacement blade?