Yes, it does, but dogfooding doesn't have to mean every single one of thousands has to eat every last ounce of the dogfood. After the first hundred people hit the same wifi-driver issue (for example) there's little value in having hundreds more lose productivity to it while they work on completely different things. Do you forego all products not made by your own company, or is this just another example of random RH-bashing? Diversity increases robustness, and compatibility testing is as important as any other kind. Creating a monoculture, which would make our environment very unlike any of our customers', serves nobody.