Override a condition's default message
What does your feature do?
In /quests conditions admins would have an additional option to override the default message format for a (each) condition (seen below)

and instead be able to specify a custom message that would be shown. For example; the above condition requires that chainmail armor be worn for a Zombie kill to count toward objective progress. Instead, I could make a custom message that is more user friendly. For example:

If the condition doesn't specify a custom message, the default would instead be used.
How would people use it?
I think this would allow server owners/quest makers to create a more user friendly experience - especially for newer players who aren't familiar with placeholders, and don't understand what they mean. Could also definitely be used for ease of explanation and a bit of a cleaner message!
I agree it could use better formatting but also this should be a request for an armor condition instead of using placeholders. In the meantime, this third-party resource might be useful: https://lectern.browsit.org/resources/resource/42/
Solution is to describe conditions as desired in the stage's details list override.