"Why wasn't I informed?"
Information is tricky. Sometimes it's delivered to you. Often, you need to go find it.
There's no blame in not being aware of something you had no idea you ought to be looking for. If you've been using the same brand of aftershave for five years, you're forgiven for not Googling it regularly to find out if it contains a carcinogen. That's information we'd like to come find us, not something we need to be on the alert for.
On the other hand, I'm stunned when someone enters new territory without doing a modicum of research. Consider the yutz who goes on vacation to a foreign land, only to discover on arrival that they're in the middle of monsoon season (happens every year around this time!) or that there's a civil war going on.
Or perhaps the small businessperson who launches an expensive marketing campaign without investing a few hours in reading up on what works and what doesn't.
Or the email novice who forwards an incredible email to her entire address list without checking Snopes first.
The rules are now clear: no one is going to inform you, but it's easier than ever to inform yourself. Before you spend the money, the time or the attention of your friends, look it up.