I don't see any problem with it. I've never seen The Music Room trying to use the forums to promote sales (unlike some other very annoying vendors) and there are a lot of pretty technical people on these forums. This might be someone's dream gig.
The Music Room is Hiring - Audio Repair Tech Wanted
We have a couple of positions open including a full-time repair tech - feel free to share: https://www.indeed.com/job/home-audio-repair-technician-not-studio-or-commercial-cd59bc60adc3b0df