[lewiscollard]

I think there's some kind of automatic title re-writing happening on HN, which sticks a question mark on the end of titles that contain the word "why" and "is". I think the goal is to make titles less clickbaity. In practice, it mangles them such that they look like the author has a weak understanding of English punctuation and/or grammar :(

[snowwrestler]

In this case, the original blog post title ended in a question mark (now removed).

[cyanydeez]

I now just hear valley girl when I see question marks.