It is the usual convention in written text to separate paragraphs with a line break and a tab. Not so on Internet forums, for two reasons: 1) Tab characters tend not to be supported and indentation is difficult or, at best, tedious 2) Space issues are not a concern; nothing's ever going to be printed. In fact, more whitespace is preferred because it tends to increease readability. In particular, clear separation of paragraphs by a blank line (that is, by double-spacing) is important. So the de facto standard is double-spaced anyway. In fact, I would go so far as to say that there is no time when you'd want only a single line break. This is particularly important when copying-and-pasting stories for review, which paste as single line separation and no tab character, requiring the writer to go through, paragraph by paragraph, and increase the spacing. While not difficult, and usually not time-consuming, this is certainly a nuisance, and an unnecessary one. I therefore propose that everything be automatically double-spaced; that is, that all line-break characters be treated as doubled. I believe that this would improve convenience and readability for everyone.