Selling on Reverb is a very bad idea. Savvy buyers can morph the “as is” purchase into an unfettered return policy. They do this buy altering the instrument just slightly enough to create an issue. Then report to reverb that the instrument is not as described. So I sold a near brand new Gibson Custom Shop Les Paul 1968 reissue. Not a day after the buyer received it he texted me and asked if the nut was the original nut. Of course it was. He said that d string and only the d string was buzzing. Ultimately he was able to get a refund. What he did was he filed the nut at the d string down just enough that it was lowered to buzz. You don’t have to be a guitar tech to know how that little trick will work. So buzzing on one string and it being a wound string is rare unless there is a specific reason such as the saddle or the nut being off a bit. If it was the neck, fretboard or frets it would likely result in issues effecting more than one string. So if a buyer just decides he doesn’t want the instrument he can pull a stunt like this. I am not a brick and mortar retail store with a liberal return policy. And yet Reverb basically allows buyers to users the as us policy. I would be very cautious about selling on Reverb. Not to mention their fees are outrageous.