Well...because usually these text editors are used for code not printable documents. And you really won't like the look of a printed "plain" text (i.e. not form

Well...because usually these text editors are used for code not printable documents. And you really won't like the look of a printed "plain" text (i.e. not formatted doc/odt/pdf). You can try to print any file from the terminal with `lpr filename` which will literary print all characters in a file (a doc/odt contains a lot of "non-desired" stuff) unless the `CUPS` daemon is aware of a certain file format (yours should "know" how to print a pdf correctly)