Interesting tidbits to HN users, who like to complain about new Twitter accounts being disabled and required to add a phone number: this is called "ROPO" intern

Interesting tidbits to HN users, who like to complain about new Twitter accounts being disabled and required to add a phone number: this is called "ROPO" internally, and multiple executives actually want that to be disabled. But Mudge asked for research that proved it was one of the most efficient anti-spam measure they have at their disposal.