Never say in ten words what you can say in fewer. Say it succinctly and it will have a greater impact. Remember that the longer you make your article, the fewer people will bother to read it. Don't post binaries. Binaries are pictures, audio files, movies, or anything other than a plain text e-mail.
Plain text has two major advantages.
First, it is readable by the largest number of comuters and printable on the largest number of printers. Second it is the shortest means of conveying your thoughts. A page of plain text is about 2,500 characters. That same page in a Word or Word Perfect document may be 10,000 bytes or more. As a scanned in picture, uuencoded for mail, it may be as much as 5,000,000 bytes in length.