The "integration" bit could be done as a documentation bug report, with the advantage that there will be a track record of the action/contents.
Do you mean that user notes would be automatically turned into documentation bug reports if decided by a note admin? This sounds good to me :) Others will surely point out the downsides :)
Did someone modify the way the email is validated. Last time I saw it, it was using a regex. Might want to check if the regex has been changed or the validation omited altogether in the source code.
The email validation code have not evolved much since you have added, even the testing code is in CVS you have added :) Since it is just regex, obvious errror are not cought in the email address, which indicate for a human being that it it probably not a real email address...
One thing I always wanted (and wrote code that was never integrated for some reason), was to let notes editors register which manual sections/pages they would be interested in editing, that way he/she would only recieve the emails related to those sections (of course all the other notes will still go to the Notes mailing list).
Last time this came up, it was said that there is not much note admin currently to handle the notes, and the notes could be handled 'efficiently enough' if the changes proposed by Mehdi would be implemented. At least this is what I can remmeber. Since I am not an active note maintainer, don't take this opinions seriously.
Goba