As we see in GFI description page and whitepaper, there supposed to be a useful utility function of GFI token:
Backer Staking : Backers can stake their GFI tokens on other Backers in order to give them additional leverage when participating in Borrower Pools. This GFI also serves as a backstop against potential loan defaults.
As the GFI description page says, it could be implemented “in the coming months”
It would be great if community could influence the priority of this function developement as it feels like the most interesting function of GFI token to keep its value for holders and to let them support backers in which they are sure.