Sounds like your buddy has no listings right now. Yes, it would help him out because he could point to your listing as an example of how he’s able to “help” buyers and sellers.
I think it’s unethical and reflects badly on Realtors. It’s almost like lying on your resume.
If I were to sell my house, I’d investigate the work history of my Realtor to make sure that he’s not bull-shitting me. A Realtor that shows me a house at a pie-in-the-sky price would loose my business and any future referrals immediately.
In the short term you might do your friend a favor, but in the long term you’d be doing him a disservice by participating in that sham listing.
You might even do yourself a disservice because your house would then have a history of listings and non-sales.
