Every single CC i use works perfectly fine and i didnt update em in almost two years in some cases. And im using about 20gb in CC content. About script mods (i assume you are talking about those) there is nothing that can be done. The game engine is how it is, and cant be made modding friendly just because. It needs to be coded and designed from the beginning to allow that. And you are basically changing the game code with script mods, so yeah, its perfectly natural (and it happens in every single videogame) that they need to be constantly updated to work properly. This is basic science.
