What do the symbols in the profile avatars in Google listing reviews mean?

[BigChad2]

A client of mine noticed that some of their customers that leave GMB listing reviews have special symbols in their profile avatars (please look at the attachment).   Is this a sign of a influencer?

Has anybody else noticed this?

r6mhX

[Igor.Go]

Just badges they received for reviews they left. Every review, upvote and etc give reviewer points (like moz points here).

Points: http://i.imgur.com/JoxRVIr.jpg
Badges: http://i.imgur.com/wSSBquq.jpg

[BigChad2]

Thanks!