Kanye, I've put in a request to move the 2WTC thread in New York City to be temporarily closed since it has been ON HOLD for over a year. I also think all threads in the Proposed Supertalls and Proposed Skyscrapers sections that have been ON HOLD for at least a year should be moved in the DN archives.
I know some ON HOLD buildings are in the DN archives right now, unsure as to why not all of the long-term ON HOLD buildings are not placed there.