About vapor barriers. It's been beaten to death for decades now. There is an overwhelming body of empirical evidence showing that when cellulose is used a vapor barrier can actually be hazardous.

I agree. I think when using cellulose it is far better to allow it to dry. But I do have a question. Is there an interior paint that allows moisture to penetrate it, so my insulation can dry better?

Insulating paint, or thermal paints, are decorative coatings that are specifically designed to improve the thermal performance of a surface. Insulating paints all function in different ways, depending on the situation. Insulating paints generally come in two forms; exterior insulating paint and interior insulating paint.