Not all the Blender Network members are artists. While it is easy to spot academics and studios from the subscription type, developers and trainers are freelancers as much as animators and artists, though very offering a very different set of services. For this reason, if you have among your skills a strong ability in programming for Blender 3D or have the official Trainer certification from the Blender Foundation, then you are entiteld to display them on your page. The main advantage of this is that your page will be added to the search results that include those two criteria.
While you are obviously welcome to mention skills and certificates in your bio, you can also contact us via email, requesting the addition of the badge to your page. We might write you back to ask for supportive evidence.