Hi,
As discussed multiple times on various lists, CentOS Linux 7 will go EOL in two weeks (end of June) and so that means that various services running on CentOS 7 will disappear too . Apart from internal build infra for centos 7 itself (non public) that will be decommissioned, here are some services that will disappear:
# mirrorlist.centos.org As the whole backend/frontend infra is running on centos 7 , and that everything Stream related (and now SIGs) was migrated to use mirrormanager (hosted by Fedora infra team), there was no reason to migrate/maintain it as all content will be EOL.
# forums.centos.org Per discussion with the forums moderators, it will be powered off completely (not migrated)
# torrent.centos.org In the past we used to provide .torrent for various centos linux releases, but it stopped with CentOS Stream. As the trackers (ipv4 and ipv6) are on centos 7, they'll disappear also end of this month