I think it’s still possible to have badges without it getting too cluttered, but I’m 100% for making sure the badges are meaningful and promote good behavior (and not the super-user effect). Donator, volunteer, event organizer, and pioneer badges would be something that could in theory be implemented right away (if we implement the feature), and there is room to add it along the left-hand sidebar of the desktop version of the profile:
On mobile you could have an expandable drawer or just put the badges at the bottom of the profile (further encouraging people read the whole profile!)