Hi! I'm wondering, what could a "snappy advice" mean?
These are snappy comments. See "snappy": snappy - WordReference.com Dictionary of EnglishIt's a phrase from "The coaching habit" by M. Bungay Stanier.
"People have lots of snappy advice for you. “Work smarter, not harder.” “Be more strategic.” These maxims tend to be TBU: True But Useless.