Is gymnasium.se Safe?

Deletes negative reviews and feedback to schools at the schools discretion. Gives the impression of a full fledged comparison site, but lacks the majority of schools, whilst it heavily implies it got at least the vast majority of them. I used this site to find my school, and it was much worse than described. After I gave it a mediocre review, the school called me and asked me if I wanted it deleted, I said no. They deleted it anyways. The fact that they have the ablity to censor negative comments and utilizes this ability, means that the reviews of all schools are usually very very one sided, regardless of how good it is. It's a propoganda/advertising tool dressed up like a real suite for finding your school. This can be very damaging to students, since they are choosing the school with the one sided view that reinforces the idea that a school is good, whilst it might have many issues that might end up meaning they have to switch schools entirely, as in my case.