I admire people here who say they wouldn't care if it showed up with six dings instead of one as long as it played well. That surely wouldn't be me.
I’m one of them who doesn’t (usually) care. But it’s nothing to admire us for.
Most of us who are into used (and especially vintage) have conditioned ourselves to not let minor cosmetic issues bother us too much. Because they’re largely unavoidable in an older instrument that’s been played. So finding a minty creampuff instrument of vintage is often impossible. And with time you learn to not expect to find anything like that.
But “not caring” about dings isn’t the same thing as not
minding dings. They just come with the turf. So if that’s something that bugs you, then the used marketplace is not your place to do biz.
I’m not going to comment on the specifics of the OP’s complaint as he aired it here.
However I will say that (IMO) if something arrived that’s not as advertised, it’s perfectly reasonable for you to do a return and expect to get a full refund. And further, that insulting and belligerent exchanges have no part in a business negotiation regardless of which side is making them or what instigated it. There are dispute resolution mechanisms and buyer/seller protections in place. Best bet is to use them. Resorting to the court of public opinion can be cathartic I suppose. But 200 people agreeing or disagreeing with you won’t get your money back from an iffy seller if you’re the buyer; nor protect you from an unscrupulous buyer if you’re the seller. So the wise thing is to promptly avail yourself of whatever protections are available should an amicable attempt at resolution go sideways.
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Minor note about dings and similar cosmetic wear and tear…
I’ve come to prefer seeing a little wear on used stuff most times if it’s more than ten years old. At least that tells me there’s a good chance it’s been played regularly and hasn’t just been sitting in a closet or up in an attic somewhere completely untouched with the strings at full tension for the last 20 years. I’ve run into some catalog picture-pretty older gear that looks absolutely mint - but which had a severe neck twist or other showstopper issue (corroded pickup coils and pots, non-fixable frozen truss rod, etc.) that sometimes renders it useless for anything other than parts salvage or a studio wall ornament due to improper storage.
That’s been my experience anyway. YMMV.