Final answer:
Typing in all capital letters should be avoided in online communication as it is considered poor etiquette and can make the text harder to read. Using lowercase letters is the standard writing convention.
Step-by-step explanation:
Typing in all capital letters should be avoided because it is considered to be poor etiquette and is seen as shouting or being aggressive in online communication. It can also make the text harder to read and understand, as sentences in lowercase letters have natural variations in height and shape that aid in distinguishing words. Finally, using lowercase letters is the standard writing convention in most written materials, including academic papers, professional emails, and official documents.
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