Denny has a good point about the certainty with which Mark makes some statements. I think it can be off putting at times, particularly to newer brewers or people who don't spend as much time on here as some of us.
I did not see any objecting when Keith basically called IPA and stout newbie poser beers.
I am not attempting to be off putting. A lot of unqualified data enters this hobby as fact when people refuse to stand up and claim that the emperor has no clothes. What Dave Line said about animals does have merit. I own goldens, and I can say without reservation that brewing with them in the house is much more challenging than it was when I owned non-shedding breeds. Is it possible to brew with animals in the house? Absolutely Do animals add complexity to the equation? Absolutely Wild microflora rides through the air on house dust. Anything that increases the amount of house dust in a house increases the possibility of infection. Animals increase the amount of house dust in a house, and so do people.
I bathe my dogs in Star San to avoid such a problem