It is not a new main point or a new idea. It is a final comment which is a suggestion. This topic is about the positive and negative effects of social media, my comment is a suggestion for the future – not a new main point.
All the best
The IELTS writing task 2 sample answer below has examiner comments and is band score 9. The topic of social media is common and this IELTS essay question was reported in the IELTS test. Check the model essay and then read the comments.
Essay role of media in modern society that religion
Many different forms of media exist in developed nations along with many assessments about each of these innovations and their respective impacts on society.