It would be nice. I decline any referral where the agent hasn't qualified the buyer. I had an agent try to pass off some investors for 45% commission. He hadn't qualified them or really talked to them about their needs at all. I told him to go get a desparate agent to accept those terms because I'm not going to lose almost half of my fee on someone I don't know.
He lowered the referral fee to 25%, but I declined anyway. I didn't want to work with an agent who was trying to develop a win-lose deal from the start.