Okay, can I have your gold?
So, you always try a stupid strategy because there is no penalty for failing? Not really a fan of that.
Hard pass. In the rewards level, there should be incentive to succeed at the content you are doing.
You can report a player if you see any indication that they are intentionally greifing (“get bricked loser” or similar in chat). If they are routinely leaving, Blizzard has some sort of metric to address that, though I don’t believe the specific criteria are known beyond that. Sometimes, something happens in the household, there’s an emergency you need to address. It is what it is.