It’s “common knowledge” among homebrewers that light can harm beer and give it a skunky flavor. Of course there is little in life more unreliable than “common knowledge,” which is why we have shows like Myth Busters and blogs like The Straight Dope, which recently did humanity a favor by trying to answer the question, Are brown bottles better for beer?.
Any homebrewer could tell you the answer, but — again — any homebrewer could also tell you that different areas of the tongue register different sorts of tastes, which turns out to be mostly baloney.
In this case common knowledge prevailed. Yes, brown bottles are better for beers.
(Ignore this please — ST7ZSHMR2GJK)