A few weeks ago someone emailed me asking if my product could do one specific thing. It wasn't planned, but it sounded useful, so I spent a couple of evenings building it. When it was done, I replied with "it's live now." Nothing. Never opened the email. Never logged in again. Completely ghosted me. I was honestly annoyed because I kept thinking, "Why did I even spend time on this?" Then, maybe a week later, someone else signed up and used that feature almost immediately....