As aw3c2 mentioned, it's the spacing, which I didn't realize, so even if I can shrink the font (which yes I know I can, but why should I be forced to change how the web page was intended to be viewed?) but then it'll be unreadable if I want to cover more ground than having to scroll because of all the comment.

Yeah, line height is one of the biggest problems in web design. I have to change it on many text-heavy pages to make it readable.

It's not ideal, and should really fall upon designers to fix, but a workaround (in Chrome or Firefox) is to edit the page's source (either with Chrome webtools or Firebug) and add a line-height attribute to <p> or whatever tag or class is most applicable, and set it to something like 125% or 135%. Usually results in a much more readable page.