http://i140.photobucket.com/albums/r21/khyron2k/Dwarves/Dwar...
If DF would look like that during gameplay, I'd immediately start playing.
[1] Obvious nitpick: some players do indeed challenge themselves to build everything above ground.
A sane interface with even the most primitive 2D tile-based GUI would make Dwarf Fortress better by orders of magnitude.
The UI may be bad and need improvement (personally I find it no more complicated than any other CLI, even if it is a little inconsistent), but you can't complain about the default tile-set being ugly and unreadable and how "even the most primitive 2D tile-based GUI would make Dwarf Fortress better by orders of magnitude" when there is a rich and dedicated group of fans who pour a lot of time into making the game look, in a lot of cases, very nice.
And as your sibling poster said, if you really cannot stand the 2d, there is Stonesense for rudimentary 3d graphics.
http://code.google.com/p/stonesense/
http://dwarffortresswiki.org/index.php/40d:Graphics_set_repo...
And it won't make your eyes bleed.