Why no MQTT transport for developers?

That is not what the public setting is do doing. Mine is public and on WU. Public allows other to see your data on the weatherflow map and at your WF stations site. Station ID in the app is the number at the end.

My WF public station is: https://smartweather.weatherflow.com/share/6594/

WeatherFlow map https://wf.fsoft.com/

You need signup at WU and manually create a station, WU will assign a station code. You come back to WF and enter that code in the weatherflow app to have it send to WU.

My WU station is: https://www.wunderground.com/dashboard/pws/KILPALAT72

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