In their book You Send Me, Patricia T. O'Connor and Stewart Kellerman note:
Some puffed-up writers use long words, techie talk, trendy terms, and convoluted sentences to cover up or deceive or sound important or go along with the crowd. Most people who inflate their writing, though, are simply insecure, often for no good reason. They don't feel their ideas are strong enough, and they prop them up with elaborate language.
If your ideas are any good, they can stand on their own. So kick away those unnecessary props. All they do is turn a strong writer into a wuss.