Asked by journalist Kevin Collier why it needed to build a database of dossiers, WikiLeaks replied that the database would be used as a "metric to understand influence networks based on proximity graphs."
But the proposal faced a sharp and swift backlash as technologists, journalists and security researchers slammed the idea as a "sinister" and dangerous abuse of power and privacy.
"This is a good plan. If you're Darth Vader," Matthew Green, a professor who teaches cryptography at Johns Hopkins University, tweeted.
Timothy Berners-Lee, the inventor of the World Wide Web, compared the WikiLeaks proposal to a piece of British legislation that has been criticized as a massive boon to the surveillance industry.
"Don't.even.think.about.it," he tweeted.
Even the so-called "hacktivist" organization Anonymous lined up against WikiLeaks.
"This is a sickening display of intimidation tactics," it said, tagging the official Twitter accounts for the social network, its support team and chief executive Jack Dorsey.
Some read WikiLeaks's suggestion as implying the threat of harassment or violence.
"Isn't threatening to dox hundreds of thousands of Twitter users a TOS violation?" wondered Anil Dash, a tech entrepreneur. (To "dox" a person is to release documents related to his or her personal life in a way that potentially endangers that person's safety.)
"Shnd't have to say, but leaking *&data collection* for harassment etc have nothing in common with legit disclosures in the public interest," said David Kaye, a California-based United Nations special rapporteur on freedom of expression.
As for Twitter itself, the social network warned in a statement that WikiLeaks risked running afoul of its platform policies if it published personal information publicly. "Posting another person's private and confidential information is a violation of the Twitter Rules," the company told The Washington Post.
WikiLeaks did not respond to a request for comment on Twitter's statement.
WikiLeaks had already been in the news this week as U.S. intelligence officials said they had information proving a link between the organization and the Russian hackers suspected of breaking into the Democratic National Committee's emails in an attempt to sway the presidential election.