Which of the following is NOT a guideline for netiquette?

The use of informal language is not typically considered a guideline for netiquette. Netiquette, which refers to the etiquette guidelines for online communication, emphasizes the importance of respectful and polite interactions in digital environments. Being respectful and courteous fosters a positive online atmosphere and enhances communication. Avoiding spamming is crucial to prevent unnecessary disruptions and maintain the effectiveness of exchanges. Practicing proper spelling and grammar helps ensure clarity and professionalism in communication, which is essential for maintaining credibility and understanding among participants. Therefore, while informal language can sometimes be appropriate depending on the context, it does not align with the overall principles of professionalism and respect that characterize netiquette.