R.A.F.
I'm not going to go back and find all the posts where some skeptic here has said, "there is no evidence". But I'll accept your current position that perhaps they meant it in the spirit you suggest. It also helps to illustrate what I had said about moving the goalposts. First there is no evidence, then there is no "credible" evidence, then the goalposts get moved so far out of bounds that the only evidence that the skeptics here will accept is scientific proof ( the proof being the evidence that scientifically proves the existence of alien craft ).
If I am wrong then what written testimony from credible people will the skeptics here accept? Testimony from USAF pilots and investigators is about as good as it gets, and that has been rejected several times. The testimony of thousands of other eye witnesses deemed credible by investigators has also been entirely dismissed, as have thousands of sightings by average everyday people ... so you tell me ... what's good enough for you besides scientific proof?
When answering, bear in mind that I'm not saying I have any proof, only that I believe a reasonable case can be constructed from the evidence the skeptics here dismiss. This also leaves out the factor of my own UFO sighting which has left me with no personal doubt whatsoever.
When I say "There is no evidence" there is an implied "that I have seen." Obviously I can't judge evidence I don't know exists. If you have any like that, you should show it.
As for "testimony" handwritten or verbal or otherwise, that is not evidence. That is the claim. "I saw a UFO that looked like this at this location and this time" is the claim; it can not be its own evidence.
A story of a UFO is an anecdote. Anecdotes are claims. Claims are not their own evidence.