Please explain the rule for burning the Trait.
Burning a track is sort of like a higher-order exhaustion.
Imagine how most days you use your phone and it runs out of juice. Charging it overnight means it's back in use -- this is marking a track, it's easily cleared.
Now, if you were some kind of computer whiz, maybe you'd overclock your phone to hack past some high-security defences, but that overheats and damages a part of the phone. That part can't just be fixed with a charge overnight, you have to get it repaired at a specialty shop -- this is burning a track, you need extra effort to clear it.
Hope that's clearer!
This sounds a little like the Legend in the Mist rules that you're talking about, which makes sense as I drew some inspiration from it! Wayfarer has no strict rules (as yet) on when to burn tracks, only suggestions. As a game with lighter rules, I didn't intend to write out explicitly all the ways a track/tag is burned, these should come up narratively.
If you'd like more guidance on burning tracks, Wildsea and PICO are the core inspiration for that rule, you can check them out! I believe they each have free quickstart rules to look at.