I've been a sometimes-lurker sometimes-poster on the forums for 3 games now.  One thing I've learned about gaming communities (and Bethesda in particular) is that the developer is ALWAYS damned if they do and damned if they don't.  In a situation where the dominant voices of the community will be pissed off anyway, why blow all the surprises?  What generally happens is that Todd (or whoever) will release a detail, however benign, and the community will immediately commence either Operation Fill Diaper or Operation Grandiose Assumption.
For the developer, its just not worth it to release too much detail.