The Feature Nobody Asked For That Became the Reason People Stay

I built something no customer requested. No data pointed at it. No one had mentioned it in a support ticket.

I built it because it annoyed me that it didn't exist.

Six months later, it's the thing people mention when they explain why they renewed. Not the features they asked for.

The one they didn't know they needed until it was there.

I still can't predict this. I just know that building only what people ask for produces a product that answers yesterday's questions.

Have you ever built something nobody asked for that turned out to matter?