Currently looking at thisthis question on Stack Overflow.
I notice that the title of the web page is "fullscreen - How do I..." For the first time, I noticed that S.O. places one of the question's tags in the page title. However, I'm not sure how this is chosen. It's not strictly alphabetical, nor is it the left-most tag in the question, nor is it the tag with the most followers.
So, my first question is, how is tag displayed in the page title determined?
My second question is, do you agree that in the example question, the title tag should be xna, since that has more followers, is listed first, and is generally more relevant to the question?