Hi
I'm not sure it was the Learn philosophy to share all badges and trophies on websites / linkedin. Actually, i have more than 20 trophies and a LOT of badges on the platform, and don't want to collect that.
This success is personal, and no "exam" are asked for validated knowledge. If you want badges like a proof of skills, please see certifications section. After an exam, Microsoft proposes to share this success with communities.