I agree with the concerns, however as someone who has been kept up a bit with the phenomenon, the main body of stuff to look at are the set of reports which involve:
- Multiple expert witnesses, usually pilots or radar operators, getting visual and sensor confirmation from multiple vantage points
- Air and ground tracking
- High cohesion and consistency (in terms of object size, cardinality, dynamics, and timing) between the witness reports
Taken together, these reports form a closure over the set of plausible explanations that should approximately explain all or none of them. My 2c is that any plausible explanations are by and large "big" and non-trivial ones like shared delusions.
- Multiple expert witnesses, usually pilots or radar operators, getting visual and sensor confirmation from multiple vantage points
- Air and ground tracking
- High cohesion and consistency (in terms of object size, cardinality, dynamics, and timing) between the witness reports
Taken together, these reports form a closure over the set of plausible explanations that should approximately explain all or none of them. My 2c is that any plausible explanations are by and large "big" and non-trivial ones like shared delusions.