UAP sightings are rarely taken seriously, which is no surprise considering that 99% don't hold up against any kind of scrutiny. There are however a number of credible sightings, the 2004 USS Nimitz incident being the most well known. Unfortunately, studying UAPs in an academic context is still mostly career suicide, so exploratory and speculative work like uaptheory.com can only be found at the fringes. As physicist Avi Loeb said before: if we don't look, we will never find anything. If only we could take the topic more seriously, we may eventually find that the Fermi Paradox is not a paradox after all.