Considering all the waste the fast fashion industry produces, we’re total advocates for buying second-hand things. Not only will it save you some money but you will also be doing your bit to save the planet. The only thing is you need to be careful where and who you’re buying stuff from.
From the looks of it, the OP was trying to sell a pair of sunglasses that he had supposedly never worn before. Looks good enough, except as this eagle-eyed commenter pointed out, he’s actually wearing it in his profile picture. He should have just gone with the usual “Barely used” line instead of lying about it completely.