From what i remember their signature campaign was paid in BFG tokens and they were actually worth something at the time. Inflation of the price would mean they would need to raise the amount paid significantly in order to get good bounty hunters to work with them, and most likely that wouldn't do any good for already dropping token price. At the start it was understandable to give them as token wasn't even traded and it made people feel to be a part of something.

Other way would be paying with btc or eth. But as they didn't do it in the first place (if i remember correctly) i don't believe they would start doing it this time.