Why should the researchers or other vulnerability spotters care about the company's customers? The companies don't care further than what they can profit from the customers.
Yes, I know what full disclosure is. Companies don't do full disclosure about anything. Full disclosure is better than not disclosing publicly. But monetizing the vulnerability is akin to what companies do.
I find it utterly bizarre that it's totally OK and even lauded that companies are selfish profit maximizing machines that DGAF, but individuals should pamper them like babies.
