Closed Buildings for Months

There are some closed buildings on the en-nokids server.
It seems like there was nobody there in the past 90 days.

Can we make locks on doors rusty after a month, if not used? So you can open the doors.
So other players could remove those locks and be able to use the buildings after a month.

I don’t know why the previous owners don’t return. So i don’t see the point in protecting thier property after a month. It’s just wasted space and material.