I usually stick to that in day affairs. But for people who are essentially in the business of thinking my intuition and judgment is usually that ignorance is almost as bad as malice.
Another way of seeing it is that if you make ignorance "totally OK now", you just make it way too easy for actual malice to get away with more.
Grown-up people, and certainly companies, should be held responsible for their actions regardless of their motive or lack of it, so that they act responsibly towards themselves and others.
But for people who are essentially in the business of thinking my intuition and judgment is usually that ignorance is almost as bad as malice.
In many legal settings, saying "Oops, I was ignorant," or (today) "April Fools" wouldn't be a defense against various forms of liability. The leaders of a business corporation have to make sure that their employees (their agents, by common law) aren't doing illegal acts.
Another way of seeing it is that if you make ignorance "totally OK now", you just make it way too easy for actual malice to get away with more.
Grown-up people, and certainly companies, should be held responsible for their actions regardless of their motive or lack of it, so that they act responsibly towards themselves and others.