I came across an instructor, has a very good instructor rating. I checked his profile to see how well he has been maintaining his rating. Checked the reviews. All fine, no problem. Checked his course previews to see how he presents his courses. The video is poor, the audio is horrible. Got suspicious. Checked reviews of all the courses. I was amazed to see, all the 5-star reviews are with written feedback ( not normal) and all the people giving 5-star ratings are the same on all the courses. What is your thought on this?
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