Dear Winston Sung, far-ranging automated/mechanical edits like the ones you're making are governed by a policy (https://wiki.openstreetmap.org/wiki/Automated_Edits_code_of_conduct). Primarily this requires that you discuss your editing plans with the community before you execute them. Please provide links to the community discussion about the renaming of language tags and classrooms. In the future, please make sure to include these links with your edits.