Building in public works until it stops working and most founders do not notice when that line gets crossed.
The early traction makes sense. You are new, the updates are fresh, and the audience you are building has genuine novelty. But in my experience that channel has a ceiling that arrives faster than expected and the ceiling is basically the size of the audience that was already following you or already cared about what you were building.
What it does not do well is find buyers who have never heard of you and are right now on Reddit asking exactly the kind of question your product answers.
That is a different problem and it requires a different motion. I started paying more attention to where my actual buyers were having conversations before they ever found a product like mine. That led me to Leadline which monitors Reddit for buying intent in real time. The people asking for recommendations, describing a problem, evaluating options, those conversations exist constantly and most founders have no visibility into them because they are focused on broadcasting rather than listening.
BIP is worth doing early. But if it is your primary acquisition strategy past the first few months you are probably talking to the same few hundred people in a loop.
The distribution question worth asking is where are my buyers before they know they need me.