Thank you for the compliment. My only point was that if you jump the topic to why they are here, it just becomes a big speculative free for all. We first need to establish if they have been here. Unfortunately, the evidence is lacking.
Many people like to point to the numbers of people who claim to have seen or been abducted as evidence. It is not anything but anecedotal.
Lets take religion as an example. There are millions that claim the only way to god is thru Jesus christ and that the god of christianity is the only god. There are millions that claim the way is thru Islam, still more that believe in alternative religions. They all can't be right, but they can all be wrong, proving that millions upon millions of people can believe something, can claim to have experienced, have seen, have been cured by, an unknown unprovable phenomena, and be wrong.
Another example...during the years when witches were persecuted and tortured, eyewitness accounts of witches flying thru the air on brooms were common. We now tend to dismiss these sitings as mass hysteria..I think it is safe to say these people were experiencing something other than supernatural sitings.
That is the real question, the real interesting thing to study in my opinion, the physcology behind mass hysteria and supernatural beliefs.
