Context: LaTeX is a typesetting system. When compiling a document, a lot of really in-depth debugging information is printed, which can be borderline incomprehensible to anyone but LaTeX experts. It can also be a visual hindrance when looking for important information like errors.
As long as you let TeX do it's job, you usually don't get such issues. But there are many people who mistake TeX as a "Word for Scientists", and just make the same mistakes they make in Word because they do not grok TeX.