SW installation on Windows is much much more simple than on Linux. That makes a big difference for average Joe.

In the real world very few people has the time to read the reviews for aggregated 1-star or 2-star or even 3-star businesses. Most people just focus on the 4-star and 5-star businesses, read those reviews then make a decision. Aggregated rating is a way to help save time for the consumer so that they don't have to read every single review. Lower-starred businesses will not get the benefit of the doubt, as you implied, and will likely starve to death (whether justified or not). That is why businesses are so anal about reviews.

For a typical family, that's around 50 gallons a day, more than enough for most backyard irrigation needs. With landscape irrigation needs taken care we can save the clean potable water for more important things like drinking and cooking. Mandate separate plumbing system (that goes into a local collection tank instead of down the sewer) for new home constructions. Provide subsidies as incentives for retrofitting existing homes. Where does the subsidy money come from? A portion from money saved from not having to pay ever rising prices for importing out of state water.