Weirdly enough, I was able to see some Shopstr-related NIP-17 DMs in 0xChat but nothing shows up on the website at all (under orders or inquiries).
For example, here’s the DM I got for nostr:npub1q8gth72n0mcl6rwls905rsvfvuu0dgaq7cq028rc9d7c3ygnp4xq84awvk’s order a couple weeks ago.