That's ridiculously naïve. You can't just decide to let your product be broken for 80% of your users because it's technically their browser that's wrong. I see

That's ridiculously naïve. You can't just decide to let your product be broken for 80% of your users because it's technically their browser that's wrong. I see these kinds of suggestions from technologists surprisingly frequently, and I always wonder if it's a serious suggestion and if the person has ever worked on anything with non-programmers as users.