Since then, we've done close to zero marketing, and it's been amazing to see new signups, wishlists and items being created - seemingly out of the blue. I made a simple Slack-bot to post those events to a channel with their ID, and these are the stats from it was added late March until now: 53 new users, 74 new wishlists, and 482 new items.
As we do no sort of analytics, we have no clue who these people are, but boy does it make me happy to see those "A new user was just created!"-messages nonetheless!