@El_Cadejo I know, but that’s just it. UFOs could be anything, like a top secret advanced aircraft, something currently in existence or something that might truly be alien. Some of the descriptions many of these people had given made it clear though, if they were telling the truth without being deluded, that some of those objects they sighted were much too big or had some other peculiarity which seemed to eliminate the other possibilities.
Anecdotal testimony can be very shaky, and should not count as evidence by itself in most situations. However, I still think anecdotal testimony can be a form of evidence in certain circumstances, like where there are patterns combined with enough testimony or when there is no reasonable way for a subject to acquire knowledge of certain events they’ve witnessed, etc.
Anecdotal testimony can be shaky ground indeed, which was why triple blind procedures were being discussed as a way to use lineup identification more effectively with much less chance of error on the behalf of the witnesses regarding crime investigations. I still value anecdotal evidence in some situations though regardless.