Undiscovered Warhol works recovered from old Amiga disks

I wrote this comment right after seeing his then got dragged into a meeting before clicking to send it, so will paste it here now... (in response to his reply to you)

To be fair, his comment was useful (informs that it's already been discussed and links to discussion), and while he could've surrounded it with extra-friendly shopkeeper talk ("I'm sure you weren't aware, so thanks anyway for the contribution, but...") it really isn't useful - it's not like he criticized you for not realizing it had been submitted.

(Also it's pretty much standard practice on HN, to say that it's already been posted and then link to either the best post or to multiple posts)