On arriving at glorified pub-chain Harvester customers are normally asked “have you ever been to a harvester before?” This means that returning diners are able to skip the complicated instructions and get straight down to helping themselves to the dubious selection available at the ‘salad’ bar. Another real world example could be your local barman giving you a pint of ‘the usual’ in the knowledge that you don’t need to be told the full options of beverages available every time you pop in for a drink.
Progressive disclosure and progressive reduction are best used when based on individual user behaviour. People learn at different rates and the rate of reduction and disclosure should be based on those learning curves. A design that adapts to the user will always be more usable than a ‘one size fits all’ approach.