:1. Note that neither secondary source interprets it ironically. One calls it "dark humor" but does not suggest it isn't serious, the other does not characterize it at all. What did you read? 
 2. It is hard to argue that "don't trust me" means "trust me". Arguing that only that part is ironic and disingenuous would be a violation of NPOV policy. 
 3. I see you are posting from a wifi cafe near Cryptome's residence.