The absence of upper-case letters is disturbing on this website. I am not sure of the purpose, is it a stylistic thing? It does not confer style to me. It is a kind of forced laziness, the kind of laziness that takes an extra effort. Going against the grain for no other good reason than that it is against the grain. It is like living in a foreign country for 10 years and not learning the language at all - it takes a bigger effort to not do it, than to do it.

While everyone might write emails or other messages in all lower-case, this is an article that is meant to be read by lots of people. Upper case letters actually do exist for a pretty good reason, they let you read much faster, by letting your eyes parse sentences more easily.