Just a little piece of 3D Printing history. Skeinforge, and SFACT.
Back when we all used this, it was almost impossible to know what was actually wrong with your printer. So many settings in skeinforge would have been better as automatically calculated values, and most people didn’t know what affected what, and in what manner or why.
With the introduction of “SFACT”, lots of those settings which would mess your slicing up disappeared, and people started focusing on sane calculated values in the slicer. From there, people started realizing the importance of correct E_STEP values, etc
This piece of software was DOG slow, and could take hours to slice moderately complex geometry.