People in order to get their reviews approved and earn MS point they write very long reviews which are really boring and waste of time.
What I believe is that short and crisp reviews are a worth reading which are not more than 350 to 400 words.
But as we know mouthshut disapprove the short reviews so people do so.
Also the review of the day is one of the longest which could be more than 1500 also. Also they are boring and people also skip reviews which are very long and I also do so but we rate them seeing the hardwork of the writer.