I think the lesson is that all incidents should be reported for our own safety.
The owner of the aircraft may wish it not known- for the perception of value loss on his asset. and ego.
But................. We really do need to know a true history of any aircraft we fly or could buy/hire.
We should never be ashamed to have had a incident - whoopsie, but wear it as a badge of learning and just don't do it again.
Without a report and hence the need to ensure the aircraft is inspected and repaired, we do not know if it is safe. I would much rather trust someone who has reported and shows how it was repaired, than some shady character with a she'll be right attitude.
How many are not reported?
Is there a machine out there that looks good but has had a unreported bingle and hides a problem? Any incident depending on the forces involved can weaken a airframe and it may not be easily seen.
I don't like the Man ever telling me what I can and can't do - but to fly we must follow some rules for our safety. Reporting incidents are one of the rules not to break for everyone's sake.
How would a pilot feel if they had a incident, did not report and the new owner died from airframe failure. Or a handling problem specific to your model was found by an owner which causes a incident in his/her aircraft, they repair it and keep quiet.
Now you discover such a handling trait at the worst possible time and the incident becomes serious injury or death to you and partner in the right seat.
Had the owners above reported then you would have been informed, noted it, trained to deal with it or sought a fix and may never have had a big incident.
We all owe to ourselves and anyone we fly with to be responsible when it comes to the rules of flight and physics. Physics does not give a damn about reputation, ego or asset loss. Unlike a bureaucrat- physics will punish every time even if no one sees it, hears about it etc.
Not trying to be wowser- but when its my life, I care.