Hi! Actually the forums linked me here, I am not sure why to be honest. I posted off the cuff, then thought, “why… was this thread in my notifications?” No one linked the off topic forums, except by name as far as I can tell, but it popped up in my notifications anyway. Even if someone had posted a link, I’m not sure why that would notify me specifically. There’s no setting like that in the options.
Then after I posted, I also realized I was in an RP forum! Apologies if I derailed anything 
Edit: It’s also worth noting that anyone at any level seems to be able to post music video links in off topic. I and others were able to do it on day 1 of the transition. Not much help in this thread, I know, but if you would still like to share music, again, come by and post!
https://us.forums.blizzard.com/en/wow/t/what-are-you-listening-to-now-v5