Door behaviors

So, first of all, did anybody confirm if double, triple or more doors work? By that I mean if stacking doors on the same place upgrade or not the defense of your building.
I still haven’t figured if they are harder to destroy this way or do they all get destroyed at the same time. Any thoughts?

Also, it appears that all your doors close the moment you disconnect. This is interesting, because it means you can exploit this and make traps for unaware bandits that enter an open box right beside your house.
Has anyone tried this?

They dont seem to close to me,my friend disconected and his dors were still opened

hmmmm… yup, it definitely doesn’t work since the new updates…

They’ve been working to defend me. I never stand for less than 20 doors in any of my buildings.