Right now, when you go to simplify and enable the cull options you think it should be working, until you discover that you have to go on a per-object basis enabling the options, since we have a general option for every kind of culling inside “Simplify”, could be better two have those two options enable by default, and leave the user to manually disable them in case they are not wanted, because right now if you enable the cull options it´s easir that you want to for a big amount of objects in your scene than the contrary.
What do you think?
I will name a few devs so they give their opinion too 
@billrey @brecht @pablovazquez