Mafia: general discussions.

Is it because people are lazy and used to the old system? Some people can't even change or fill out their profiles, let alone choose Quests.

So, what's the problem? It's easier for the GM to come up with hints based on a lot of information about the Quest. And I don't think players will mind choosing a number from a list, or if they can't choose a number, the GM can assign one.
No one needs to fill out Quests; there are official sources, from Wikipedia (you can start with that) to anything else (just not crazy pages with nonsense). You choose a violin, and you get a hint about a fact related to the violin (if you're choosing from instruments). You choose Machiavelli (from the list of commanders), and you get a hint about Machiavelli. You choose Spielberg from the list of directors before the game, and you get a hint about Spielberg. THAT'S IT... simple and much more interesting.

Added 2 minutes later
Drakkosha, the Leshy who was removed with a mod, was once a GM, and she offered decks of TAROT cards to choose from, and she created hints based on facts from the decks. I guessed one hint there )) (and I linked 2 others incorrectly))