I must be the only user who actually prefers about 2-4 blank lines at the end of any chapter/file (or whatever). I find this helpful because, while scrolling down the text, you hit the eof - at the bottom of the screen.
Unfortunately, this makes it hard to be sure that you've reached the actual end of text and not some typo, malformed mark-up, or whatever. So I use the extra space as a means of letting me see that I've come to the end. Then if I start reading the next page/chapter and the flow of words doesn't make sense, I know that there is something odd going on.
And it's not just me having lost my mind or anything.