Well this is not about me, but you can see one of my systems in the video here
Organic and organisms are not the same… how can beneficial organisms cause problems? Its done in hydro as well which you dont want organics in either. what disadvantages? You neglected to look at the advantages that fogponics provides over the others you mentioned. There will definitely be...
That res that feeds the 4x8 is open to atmosphere all the time. I turn off the room lights when I leave the area, I do not get algae. To much good stuff competing in there, and not enough light to make them the dominant species.
As far as the beneficials, yes I run them all. Mycelium, bacteria, and enzymes from time to time. And yes, nitro bacteria are in the system naturally, like an aquarium.