There's a case to be made for player responsibility and preparation actually leading to a better experience, but if you have a bunch of mods installed and especially with any sort of personal tweaking it could be tedious for players to install them, especially for the less tech-savvy. Being able to transfer mods directly from the host to other players would smooth out the experience a lot.
I figure have the players prepare their character backstories and whatnot, not updating their files.
