The way you take pictures of your items is an art (a dress hanging from a tree branch, a moon figurine styled on a shelf, a pair of shoes placed in the grass in midstep). The more artsy, the better.
The item descriptions flow with styling suggestions and details from the item’s past life. (This is the dress I wore when my ex proposed, this necklace is beautiful but associated with bad memories, etc.)
The buyers and sellers you message all end their replies with heart emojis. And, most importantly, the gesture seems genuine.