This derailleur has seen a lot of trail time -there are obvious scrapes, dings, and dirt.
Warn logos and branding is another tell-tale sign of NOT Like New!
This should have been a huge red flag - but was missed. When paint or anodization is worn to bare metal - it's not "Barely Ridden", this crank has well over a thousand miles on it!
While not the original fork - this one has obvious signs of being left outside in the elements way too long. The finish is no longer glossy and is faded. There is also signs of water/chemical staining on the cross bracket and lower legs.
Dirt is always a good indicator - but look at the brake pads, if they are worn down to the metal - well, that's NOT "barely ridden!"