Nevertheless, I found the app and signed in - as expected, really well designed and intuitive to use. It was nice to immediately see some recommendations for the hashtags I selected.
A lot of my online purchases would fall under one or two hashtags (#climbing and #workfromhome). For climbing gear, my purchases are almost always based on recommendations from friends and great climbers online. If I was executing on this idea, I would seed one of these hashtags more thoroughly, and then go after that specific community - there are many climbing forums where people could really benefit from having something curated like this.
I look forward to following your progress! Best of luck to you all.