For more context:
In our particular case, we’ve noticed new users don’t adhere to the style/rules of our site, which caused our front page to look very unprofessional, thus (most likely) stopping casual guests or organic clicks from registering. We’ve set the home page topics to TL2 users and above, and it cleaned up 90% of our listings. Everything else is in /latest. Our users asked for this, and our users love it 
It also places more weight on trust levels, particularly in our case (a marketplace) where everyone wants to be on the front page.