Exactly this. When you're reading different news sites, you never have any idea which sites load hundreds of comments at the bottom and which don't. What you think is a long article actually turns out to be 80% comments by page length.
The same thing happens with books that include references at the end — a print book can be 20% endnotes. I've even encountered bizarre EPUB's where for some incomprehensible reason there's a page break between each endnote, so the actual content of the book ends somewhere around the 5% mark of total page count.
I actually really appreciate a super-thin (2px) progress bar in the header.
I don't like an always-visible table of contents because I find it really distracting. But I really like the way Wikipedia does it in their app, where it's a single tap to reveal the table of contents full-screen, centered on and highlighting your current section.
The same thing happens with books that include references at the end — a print book can be 20% endnotes. I've even encountered bizarre EPUB's where for some incomprehensible reason there's a page break between each endnote, so the actual content of the book ends somewhere around the 5% mark of total page count.
I actually really appreciate a super-thin (2px) progress bar in the header.
I don't like an always-visible table of contents because I find it really distracting. But I really like the way Wikipedia does it in their app, where it's a single tap to reveal the table of contents full-screen, centered on and highlighting your current section.