I have to say I can not see the link that people are talking about but I do know a fair amount about temperament.
Real true or perfect temperament is next to impossible on a fretted instrument. In perfect temperament there are twenty pitches in an octave rather than twelve. The space difference to place say a C# and a Db fret, particularly in the upper frets, makes the idea of placing and fingering these frets absurd.
Not only that but yields few benefits. It only works for music that stays distinctly in a key and only if you are playing with other instruments that also have perfect temperament. If you play with instruments that have even temperament, you will be sharp or flat most of the time. Also, the efforts you make to gain this control will often be negated by new or old strings, wood movement from the weather etc. People have tried to make systems that work on fretted instruments for a few hundred years and they have never caught on.
If you want a guitar that plays in perfect temperament, make a fretless.