Good points. Theres quite a few great mods that are made by people who never modded for Sh3. Realistically, i dont think its a good idea to count on the modders from Sh3 to be around long in general. Think about it, you spend Months, or years tooling around with one game, now you have to start over and do it all over again?! Yeah, right....
Modding this game is not hard. Once you learn the file structure and what files do what, your in a position to change most annoyances.