This error shows the reader that either you don't know the difference or you're too lazy to check and edit. Many times, you are so rushed to compose a business document that you use easy methods to get it done. The result is business documents are often filled with buzzwords, cryptic dialogue and outdated phrases. Readers won't say that they don' t understand what you are writing, but will note not to use your business services. Keep your writing simple and current.
Writing styles are like fashion and have indeed changed over the years.
You must keep up with today's business practices and expectations, but beware of certain crutches such as buzzwords, industry jargon and cliches. Buzzwords are trendy terms and expressions that sometimes mean nothing, but seem impressive. Like fertilizer, buzzwords are spread generously over documents in hope that brilliant ideas will miraculously take root. You want to make sure that everyone understands your written ideas. The last thing you want to do is to give the impression that your writing is too formal or outdated.