I haven't voted, and would qualify this by saying that I am 100% trad, and have no inclination to change this. I get decent results doing it my way, and I am happy to keep things the way they are, but do not want to be condescending by saying the wfp guys aren't cleaning, but only brushing glass. It is an alternative method which clearly works, but one which I choose not to buy into. Personal choice, plain and simple.
John