Well, you say that only if you could get rid of plasma, KDE would be modular and user-friendly. That sounds like nonsense to me...
In what way is KDE not modular according to you? Because you can use KWin without plasma-desktop? Because a KDE application like Krita runs fine on any other desktop than plasma-desktop? Because plasma is modular enough that you can create an old-fashioned Windows 95-like desktop with a start-menu, a panel and icons on the desktop as well as a finger-friendly information-on-the-desktop tablet gui?
And in what way would KDE be more user-friendly for you without plasma-desktop, always accepting that any judgment on user-friendliness given here on LWN is bound to be highly subjective and completely skewed because of the reader base?
And while KDE 4.4 was perfectly usable for someone who used to use KDE 3.x (KDE 4.2 was already in that stage), yes it matters which version you were talking about, because KDE 4.6 is much better again.