Hello from the United States of Jesus!
You have no idea how nutty the responses can get to the videos. Threats of violence and insults are used quite frequently, while many messages talk about how much the person loves us while they describe what will happen in Hell (creepy!).
Often the replies show how little the Christians know of the religion they are in, and that's just sad.
Usually, the people that come here end up being stubborn. They will even agree to an amazing amount of nonsense just so they don't have to say they were mistaken on any level about the god they worship.
Occasionally, there are reasonable people!
If you want to take a look, here's where all the incoming mail is posted;