I wonder if he found a commercial beer that's labeled as Belgian Brown? That's a whole other thing. You'll find commercial beers that are called by styles not found in the 08 bjcp guide. Might be in the BA guide. Might be something they invented or that isn't called that by one group or the other. Guidelines aside, pretend they don't exist, if someone handed me a beer and said check out this Belgian brown... I'd expect it to be brown and Belgian (either a common clovey or spicey fermentation profile, or farmhouse ish with some acidity and barnyard or cherry pie qualities)