All projects, 90% of threads on this entire forum/website are categorized as proposed and open for discussion. Whether they are built or never come to fruition is not relevant in thread creation.
This forum
is proposals/proposed projects.
Pro`pos´al
n. 1. That which is proposed, or propounded for consideration or acceptance; a scheme or design; terms or conditions proposed; offer; as, to make proposals for a treaty of peace; to offer proposals for erecting a building.