Listings are not pushed to unwillimg nodes. Nodes only pull and cache content they explicitly load. If you load something that isn't something you want to provide to the network you can clear your cache.
We do operate a few nodes that accept content updates from user nodes but we can manage what is and isn't hosted there. They're not really "super" nodes because anybody can host them and have nodes push data to them.
We do operate a few nodes that accept content updates from user nodes but we can manage what is and isn't hosted there. They're not really "super" nodes because anybody can host them and have nodes push data to them.