Some of the criticism was pointed and I can see how this might ruffle feathers, but the point being made is spot on, and you really should carefully consider it.
It's not your property to make such decisions with. What if something is wrong, and you lose control and destroy it? Worse, what if this happens purely out of pilot error?
I know I wouldn't look too kindly on, "well it just would have happened to you too, it was messed up!". What? You don't know that, stranger.
Do the right thing and make a good faith effort to find the owner and return it without messing with it. The good will will be far more valuable than any satisfaction of your curiosity.
Ethically, it's about the same as seeing someone left their keys in the car, and you decide to take it for a spin "to see what it does". Just a matter of scale.