I'd like to remind everyone that the right place to ask KNotes questions is in a forum that actually gets read by KNotes developers and users -- that forum is the mailing list
kdepim-users@kde.org.
When expressing wishes, it's really worthwhile to go to bugs.kde.org and fill in a wishlist item. Or right-click on the KNotes systray icon, choose menu "help" and select "report bug" which will do the same thing (take you to bugs.kde.org) but skip a few annoying questions.
Wishes expressed on some random web board are like shouting in the wilderness. (Oh, and I _agree_ with the wish, even, though the behavior doesn't bother me since I restart KDE maybe once every few months).