I'm having problems with the bulk tag removal API. For example, using the API explorer for my nation I send the following:

DELETE | Bulk Tag Removal|

/people/:id/taggings with id = 123 and body:

{ "tagging": { "tag": ["hello"] } }

I get response code: 400 { "code":"missing_parameters","message":"Missing Parameters.","parameters":["tagging"]}

In contrast, the API for adding tags works as expected. This has exactly the same syntax except the request is a PUT not a DELETE.