One problem he doesn't account for is that the community of users is often diverse and therefore ui complexity gets driven by corner cases. Often teams will sta

One problem he doesn't account for is that the community of users is often diverse and therefore ui complexity gets driven by corner cases. Often teams will start out with a visionary who holds the line for a while but gradually the pressure to add another bell or whistle increases until it is impossible to resist. For example coversion rates; if a feature is shown to drive up conversions by a small amount it will tend to get added, it doesn't take many of these discoveries to ruin an interface.