it's not "all" people like that, but yes, you do get your fair share of elitist fanboys over there, however there is a whole myriad of great information regarding product choice and technique too.
Personally I'm using CarPro Snow Soap and Iron-X, Sonus polishing compounds and Autoglym HD Wax, with a few other products thrown in here and there for good measure (like Autoglym Intensive Tar Remover, Meguires Endurance Tyre Gel, etc).
the problem is, until you've tried a great number of products you don't really know which you prefer to use, and which brings out the best for your paintwork. The above kit was utterly superb for my old Daytona Grey (dark) Audi A6, but on my current silver A4, it's a bit lacklustre.