Justin, i don't even see the point to argue with "oh i fed like that and nothing happened"
i will repeat though to never use wild caught frogs to a frog living in captivity!
1. ethical aspect of feeding frogs to a frogs! Most people will find offensive the idea of even raised from the eggs and diseases/toxins free frogs to be used as a food, unless there is absolutely no other choice and as a last resort, for example some WC cornutas.
what could possibly be a reason to feed even captive bred or captive raised frogs to a frogs, when there so many food items available. the fact that in a wild frogs diet consist mostly of anurans doesn't necessarily mean we should do that in captivity. First of all the way that data was collected, frogs were collected when they are available ( breeding season and babies/youngsters). At that time and in general they eat what is readily available. More importantly care and life in captivity is very different from such in a wild, thus we need to adjust a lot of things to ensure long and healthy life of a frog.
2. parasites/viruses/bacteria. Don't see a reason to go into any discussion about that, you should read some veterinary books may be? but to add - it is recommended to quarantine ANY captive bred frog for at least 30 days before allowing any contact with your collection ( that include using same tongs, etc), and at least 60 days and in some cases more with deworming done at that time for wild caught frogs.
3. environment toxins.