I definitely think it can make the games less fun. A few years ago, I wanted to get into modding Skyrim so I watched the tutorial videos from Bethesda. Watching the designers make maps showed that much less care than I thought actually goes into designing them. For example, if two pre-made dungeon tiles didn't fit together, they'd just put some rocks over the seams, and they had a lot of dungeon rooms already created and they'd just paste together in a different order to make a new dungeon. It shattered the illusion that the environment was handcrafted, and I couldn't stop seeing the shortcuts designers took once I knew how they were made. I stopped playing shortly after, and will wait until ES:VI is heavily discounted before I buy it.