But if you only have a specific area of operation, you need to run a bounty that's targetting the geographical location as exact as your operation. IMHO, just stick to the referral program even without having your own token. I think it's not necessary at all.
That the thing is very hard to restrict bounties. People will use a VPN etc. Good advice to stick to the referral program for now. Maybe a real small bounty a few months down the line .