system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Why does Boba Fett carry around Wookie scalps?

Seems a little serial killer-ish to me. He doesn't have trophies for all of his kills does he?
gpt
Bragging rights. If he's dealing with other bounty hunters a lot, he's dealing with Trandoshans. And being able to say that he's offed multiple wookiees and kept trophies will get him big rep points where they're concerned.