Stevie's original artwork for auction

[Papillon]

I'm confused about this auction. There are groups on Facebook who offer stuff like this for sale too. Nothing like clothes that Stevie wore, but the framed Polaroids? Yes. And the Stevie original art- that makes sense to me, but there is also an original art piece made by a fan. I'm not sure why that iz listed in the auction. Even the more verifiable stuff (like the framed Bella Donna platinum record) makes me wonder where all the stuff came from in the first place & how did the sellers even get these things? Idk.