Sure. Buildcraft should also be handled with care. In my opinion, ICĀ² is still the most harmless of all those, so I think I leave it like it is. And well,.. Buildcraft... ... ... Is a problem
I think about a cordoned off area for quarries or so.. Shopping system would also be f*ckd then, but not if they wouldnt be able to craft, but be able to purchase, so theres some kinda self control over it.
But well, offtopic, nevermind.
Ontopic: EE is just a hell of a mod. Over and out
EDIT: Real ontopic: Certain items can be disabled in the config. Dont know how placed block behave, once they are disabled, but well... Disable EE, run the server, enable it again and edit the config like your wishes.