FESco previously approved a requirement that Spin/Labs owners send a keepalive request in order to keep building the spin or lab. I have opened Pagure issues[1] for all Spins and Labs listed on the wiki[2].
If you are the owner of one of those spins and labs, please reply in the appropriate ticket by 22 January 2020 to indicate the spin should continue to be produced. If there is a spin or lab that does not have an open ticket, please create one[3].
The reasoning for this is to not ship spins that are not actively maintained.
[1] https://pagure.io/fedora-project-schedule/issues?status=Open&tags=spins [2] https://fedoraproject.org/wiki/Releases/32/Spins [3] https://pagure.io/fedora-project-schedule/new_issue