Can someone explain the grading of certificates with re:Post

Certifications add the following scores

In the section "Who should take this exam?" in professional certifications it says: two or more years of experience, in specialties says: five or more years of experience. Specialty certifications may be more difficult than professional certifications, but at the end of the day this will depend on each person's area of expertise.

To partly answer my own question I did find a basic explanation of how the points system works within the re:Post FAQ.