Many operators in very cold climates use fuel additives such as gas dryers to absorb and pass fuel through the system. Again, such individuals are being cautious, and knowing the limitations of their aircraft. It's said that superior pilots use their superior knowledge and wisdom to keep from having to use their superior skill. There's a lot to be said for that. The site is a nice effort, but the root cause needs to be more closely examined.
Airplanes are mechanical objects, subject to imperfections and faults.
Pilots, by the nature of their calling, are about learning those faults and dealing with them. I have to say that after many years of flying, and a reasonable amount of experience in these airplanes, I concern myself with other things to a much greater degree when flying them. I am aware of the limitations of the systems in the airplanes I fly, and take measures to account for them. Finally, it behooves every pilot to be thoroughly familiar with every type aircraft that he or she flies. The pilot should read the maintenance manual and understand what the airplane is about.