My action was to write a proposal for 'default settings of UA should be accessible'; although in the Introduction to the document we say:Simon Harper, 7 May 2009, 09:56:16
'Some users may have more than one disability, and the needs of different disabilities may contradict. Thus, many of the requirements in this document involve configuration as one way to ensure that a functionality designed to improve accessibility for one user does not interfere with accessibility for another. A default user agent setting may be useful for one user but interfere with accessibility for another, therefore this document prefers configuration requirements rather than requirements for default settings. For some content, a feature required by this document may be ineffective or cause content to be less accessible, making it imperative that the user be able to turn off the feature. To avoid overwhelming users with an abundance of configuration options, this document includes requirements that promote ease of configuration and documentation of accessibility features.'
Which suggests to me that the we should shy away from 'default' and present this as a 'light touch'. Therefore I was thinking something along the lines of:
'4.5.X Reconfigure Defaults: The user agent will allow its default settings to be reconfigured by the user, via a globally accessible key combination (level A); and further, will automatically prompt the user to reconfigure the default settings at the first application launch after installation (Level AA).'