Earlier quoted context omitted.
Personally, I filter out one and five star reviews. To me, five stars means when you use the product, Jesus appears before you. One star means I ordered a cable and received a dead crab instead (pretty sure there's an XKCD that covers the last one). But others don't agree with my rating system, so "ordered blue, but it was robin egg blue. Werst company evar!!!11" means one star. Five stars means "I work for the compa…
Really? If a product meets your needs, is a fair price, and seems to be working fine after 30 days, you would not give it 5 stars? It would need to perform miracles to get 5 stars?
4 stars is "Does its job better than expected"
5 stars is "contained a 100$ coupon for amazon" or something that really makes you love a product.
The product quality of LEGO bricks – survives a century and so on – is worth 5 stars, as it’s far above expected quality for such things.
For a USB cable it would need to be amazingly resistant to wear – survives being folded and survives a dog chewing on it and so on – and it would need to be perfectly manufactured to get 5 stars.
In Hardware, usually very few high quality products – Miele washing machines, LEGO bricks, IBM ThinkPads, etc – reach something that could be called "5 stars".