Aside that the '80s was a long time ago (2000s would be more accurate), I have the same "feeling" but cannot put my finger exactly on what causes this.
- Window borders?
- Desktop layout?
- E16 settings widgets? (I've got a leery eye on those)
It might be interesting to start a new thread on the subject.
That way we might catch some points that can be changed to enhance/morph/theme E16 into a more modern one.
Or at least make it apparent that E16 and E23 are related and viable options to one another on an equal level.