I agree, I would like to give it a try. The only problem is how do I ensure the information is valid. I am not going to try and access the accounts, as that would be unethical.
Would it be unethical to enter anyone's house without being invited to save the people in there from a huge fire burning the house?
Saving someone in immediate peril of death is a bit different to alerting someone that there's been a privacy breach, which they can then deal with themselves.
Maybe, but it could definitely be illegal. Anyone could have the right intentions, but make a mistake during an act of Good Samaritan-ship and get sued.