See https://www.openstreetmap.org/user_blocks/6996 and https://www.openstreetmap.org/changeset/133843021 for additional context. This fully reverts the following changesets (modulo conflicts, resolved the best I could manage):

133764272
133769742
133769753
133770747
133771176
133773178
133773312
133808351
133823358
133842970
133843021
133843030
133843123
133843171
133843251