If badges act as an "exclusive club" thing for services or relays they might be worth something. That being said, I'd rather pay in sats sats outright.
Discussion
I made this thing for fun where you can track zaps sent today by either team 21, 69ers, 420 gang and grand zappers badge owners 😂 https://dev.uselessshit.co/nostr/zaps
Reputation by Participation
(From a marketplace point of view)
You buy/sell X number of things during X amount of time you get a certificate of achievement
We can display this in text
Or a badge for quick visual reference of authenticity
Nothing exclusive unless you want it to be… more a proof of work