I think you guys are all taking this fellow's ranting and raving a little harder than you need to. He seems to be honestly trying to find out if the zapper works. His english is a little poor so I think he may not be trying to yell at us.
If you need a good testimony, here's at least one that I know of. http://zapperplans.com/letter.html also I have been zapping for 5 years and, though I don't have any terminal illness I have benefited very much from the zapper. Every time I get a cold or flue, I simply zap and in few hours I am better, once in a while it takes a few days though. I hope this helps you! God bless!