It's the buy/rent ratios of the top 50 largest cities, not the 50 cities with the best buy/rent ratio.
As for it not having US in the title. It is a .com. Technically that means it is in the US. If it was "Rent vs Buy, Top Cities" on Trulia.co.uk, I would not have clicked through becuase I would have known they were not talking about the US.
I don't see why every single time someone posts something they need to qualify it as "IN THE US!" when its on a .com already.
.com is a generic TLD though (originally commercial now open to anyone) not anything to do with a Geographic Area. The intention was for .US to be the USA's TLD. http://en.wikipedia.org/wiki/.us
As for it not having US in the title. It is a .com. Technically that means it is in the US. If it was "Rent vs Buy, Top Cities" on Trulia.co.uk, I would not have clicked through becuase I would have known they were not talking about the US.
I don't see why every single time someone posts something they need to qualify it as "IN THE US!" when its on a .com already.