What are you talking about? Didn't project blue book provide a final answer to the UFO problem? You nutty nutty nitwit, how dare you question an investigation comissioned by the U.S. military.
I'm sorry, I've declaired today sarcasm day, and I couldn't resist.
While weather baloons, and U.S. military black ops projects may account for a high percentage of total sitings, and deliberate hoaxes a much smaller number, you still have a huge quantity of creadible, unexplained fennomina to account for. You make a great point when you asert that sitings are becoming more numerous, and difficult to discount. those individuals brave enough to come forward and tell their stories and by doing so face criticism and irrational vitriolic contempt are helping to change public perception of the UFO finomina. Now, the vast majority of U.S. citizens side with the "wackos" and "crazies" who have long seen through the coverup.
BTW, who ever heard of mass hallucination anyway. Um, I wonder what causes mass hallucination? Oh, I forgot, it must be that ergot fungus we all chomp on. Call me crazy, but its easier for me to believe in UFOs than it is for me to believe in mass hallucination.
Great post, even greater mystery.