Yes, it’s a pity that they did this only now, and not a couple of years earlier. All new quests, stories, mods in general etc. from users would already be ready and there would be a lot of them
As far as I remember they use mods directly from nexus mods. And nexus is a database of all mods for all games +-. You can read it somewhere on their website, it most likely says what and how.
Wabbajack is a name for automated installer, nothing more
based and true, I've played through it many times, started over again many times, and as soon as I hear the soundtrack somewhere, I immediately put the game on download xd