Perhaps if you were as nit-picking towards the defence given for all of the measures and actions taken against posters here that you support - as you are with any attempts to make them clear and consistent in purpose - we may all be better off? But at least you at least are making some attempt at sensible debate.

(1) Nothing is deleted at all and the posts can be read by everyone

They can be read but the closure still prevents any furher contribution.

(2) The closure is completely independent of content

The day when machines do as they wish and not where and when as we instruct them - this may be true.