As a side note, I think the website "paulgraham.com" demonstrates an anti-pattern: It is available with and without "www." prefix, thus splitting the HN comments into two parts:

https://news.ycombinator.com/item?id=6175417 (paulgraham.com)

https://news.ycombinator.com/item?id=6178042 (www.paulgraham.com, i.e. this one)

The solution is simple: Establish an HTTP redirect from "www.paulgraham.com" to "paulgraham.com" or vice versa.