re: Not sure where you are coming from. Dust on the Moon is an engineering problem yet to be solved.
I don't think your guesses to what happens at night are based on anything but wishful thinking. Micrometeorites and cosmic rays continue to hit the surface of the Moon throughout the night and are a substantial cause of the lifting and charging of the dust.
Nobody is saying with a little science and engineering we can not solve the dust and other problems on the Moon. But, it does take research some of which is currently being done. Still more needs being done before we spend billions on astronomy on the Moon.