If you are just expecting students to make one post, and if you don't want students to see each other's comments, you might want to consider changing this to an "Assignment." They all upload. You download a grading sheet (in Excel). Duplicate down. Upload. Done.

One problems of having the tutor making identical posts is that if students see this, they might all copy/paste their own posts. It would seem that if it is acceptable for the tutor to make the same post, this would also apply to students.