My guess is that it's running similar to decaptha in n which their is a human/manual process involved. The pulling of the tweet is automated, scrubbed based on

My guess is that it's running similar to decaptha in n which their is a human/manual process involved. The pulling of the tweet is automated, scrubbed based on criteria, and then a human changes or confirms the tweet. Indians working off of a thesaurus would be rather inexpensive.