[asherkin]

> Scaling that up - if I'm not logged into Wikipedia, and simply searching and reading articles, why does that need to be served under HTTPS either?

Because a malicious MITM could modify the content you are reading (and thus affect your perception of a subject). A bit of misinformation here and there can go a long way.

[tdkl]

Targeting Wikipedia is different then personal static blog of John Doe. Wikipedia has resources for this, John doesn't - hence threatening the open web.