Adding sound fonts to the synthesizer Fluid tab
If you have about 10 fonts already added, adding a new one is pain in the butt. The new one is added on top of the list and if you leave it there all your scores are screwed. Moving it down takes several minutes. If you add several sound fonts, by the time you finished, you are pissed off.
Now, if you remove some font from the file system, then the whole list in the synthesizer is screwed, and as the result all your scores are again screwed, unless you painstakingly restore the list. If you don't remember the exact order in your screwed list, you want to be very rude.