It seems that Akismet is no longer accepting the API Keys from Noteworthy. Messages sent via email are also not being properly checked when Akismet is active. Both of these issues are critical bugs.
This is a non-critical component of Noteworthy (particularly when a person is not using the Email component), so the bug will be changed to an "enhancement" and moved to a later milestone.
It seems that Akismet is no longer accepting the API Keys from Noteworthy. Messages sent via email are also not being properly checked when Akismet is active. Both of these issues are critical bugs.