A possible deactivate option similar to facebook, as opposed to opting for delete button. This feature might be helpful for those that want to deactivate their account for a short time, and then get back on it later.
I’m sorry but there is no feature with that label. There is no requirement for keeping a blog updated and “deactivation” simply amounts to ceasing to blog and changing blog visibility to reflect that. The 3 blog visibility options we have are here > http://en.support.wordpress.com/settings/privacy-settings/