The other day I was working on leveling my Blacksmithing. My current skill is 51, and I was using the level 47 Shield of Flame recipe to level up, since I still had tons of Moon Silver & Tarslin Demon Wood to use, and you can actually make a bit of gold NPCing the excess shields.
So I set up a production run of 37 shields (the amount of space I had open in my backpack) and clicked the 'Craft' button. I ended up making only 27 of the 37 run on a recipe below my crafting level. That's an unusually high level (about 28%, if I did the math correctly) of failure, so i did some additional runs to see if a trend emerged. After several runs, I ended up with about a 15-20% failure rate.
So what I would like to know is, WHAT is the point of production failures other than to annoy the heck out of me & waste more of my time?