OK, the last of the most recent “building=yes on a node” changesets is complete in https://www.openstreetmap.org/changeset/68623192 . I haven’t looked at the earlier issue (https://forum.openstreetmap.org/viewtopic.php?pid=732297#p732297 ) yet, and I haven’t looked for any exceptions that might have been missed (or by other users using the same flawed logic).