My guess: the web developers who learned that lesson 10 years ago are now outnumbered and outvoted by the developers and designers who don't have enough experie

My guess: the web developers who learned that lesson 10 years ago are now outnumbered and outvoted by the developers and designers who don't have enough experience to do interaction design well. Neophytes will pretty much always outnumber experts, and the neophytes can only be counted on to adhere to a handful of the most popular design guidelines.