I never said you were stupid. I've already said how much and how often you should fertilize. I said 1/4th tsp. per gallon and no bugs. NO bugs if you fertilize via the pitchers. Feeding insects is inefficient. There's no real reason to do it when you can fertilize via the pitchers.
If your fertilizer calls for almost four teaspoons per gallon (3.785 liters per gallon), it must be really weak. What are the three numbers on the front?
When I say 1/4th tsp, I mean of solid or practically solid. That's generally going to be about what you use. If your fertilizer calls for more or less, just cut that amount in half. You should use 1/2 tsp per liter since yours is a liquid. Sorry I overlooked the fact that your fertilizer is a liquid. You didn't overdose your pitchers, you put water in a pitcher with bugs. This is why your pitchers rotted.
To be honest, it sounds like the company that made your fertilizer is selling you mostly water. Almost four teaspoons per gallon is a lot when you could buy a solid concentrate like Schultz's. Always go for Urea free.
Why do I separate ideas like that? It's weird. Anyway, James, your plant looks good. Some plants, like N. truncata (which also happens to be one of the parents) produce exponentially larger pitchers (up to a point, of course) so I'm not really surprised your plant did this. I believe it would have done it if you had never fertilized. HOWEVER, the plant would not have made such a LARGE size difference from pitcher one to pitcher two, and the plant would have also taken longer from start to finish to produce pitcher A, grow the next leaf, then produce pitcher B.
Those reading this, don't think you can't get these results without fertilizer. You CAN. The difference is that you'll have a shorter life on your pitchers (IME, I've never done a real experiment ), will add a lot of WASTE to your pitchers, can produce a smell, can produce mold (no shaking, either hehe), you can't control it either. If you want to raise or lower the NPK %
s for whatever reason (for example, to promote the chances of flowering) you can't do that with bugs. Fertilizer is just an efficient, clean way to feed your plants. Even if you are feeding the same amounts of NPK via bugs or fertilizer, the fertilized plant will be cleaner, won't smell, and the old pitchers will look healthier on the fertilized plant versus the bug fed plant (even when feeding them both the same amounts of NPK each way, even though there's really no way to measure the NPK the plant gets when feeding bugs).