I'm redoing my RSE quest on a mule to re-earn my RSE (long story), and when I look at the quest page, it'd be nice if the fame requirements held links to the page(s) for the relevant Reputation NPC.
I'm not a premium member, so I don't know if there's a way for premium members to search for quests based on whether or not the DB has a fame requirement or not. Those with direct DB access would certainly be able to do that, I'd think.
As for the mob links themselves, that's easy enough.
Reputation NPCs (that's the actual name Square Enix uses, not "Fame Checker NPCs".)