I don't know why. Be consistent in your grammar. Edit the text to fit the space available. Any article can be written shorter, a painful lesson for writers to learn. I think the ultimate was Ed Mendelson's review of all of Lotus SmartSuite in a PC Magazine first look - in 1200 words.
Good writing is the skill of saying everything needs to be said, but in as few words as possible.
I've run out. So I'll shut up now. Esther Schindler is nn newcomer to these pages.