Couldn’t someone use a ship for purges to hold their treasure coffer?
Again the only places I’ve seen major lag are giant castles with nothing that sticks out horizontally but where the total number of building pieces must be astronomical. And who knows what is going on inside. Some people hide their “pretty” and ornamental designs and many rooms, some people are more open with it.
To me it is either taking up more area that is reasonable for a base, encroaching on important resources, or trying to prevent someone near you from building or getting up in their face unreasonably. Is that what you mean or something else?