[8] He was credited by Taghva with leading the successful Conservative Party of Canada leadership election campaign of Erin O'Toole in August 2020.

[9] A media study by Canada's National Observer found that 8 per cent of Conservative respondents read The Post Millennial.

[9][5] In early 2022, The Post Millennial was ranked 23rd among Canadian media outlets by audience size, with an average of 1,968,000 unique monthly visits between January and March 2021 per Similarweb, but it did not meet Comscore's minimum reporting standard.

[8] According to Taghva, the site was receiving revenue from consulting clients and through paid subscriptions or advertisements; it did not reveal the number of subscribers and displayed no ads.

[8] In an interview for Rebel News in 2020, Ali Taghva said the website had been intended as a media outlet delivering unedited stories that would "speak for themselves".

Conspiracy theorist Paul Joseph Watson released a false story alleging that the wildfires resulted in large part from arson.

The Post Millennial used Watson's story as a basis for their own reporting, alleging that "legal action" had been taken against 183 people during the bushfires.

The Post Millennial later issued a correction, but continued to blame Foster for the death; The Daily Dot described the episode as an example of how "disinformation circulated by fringe groups to support their preferred narrative—that Black Lives Matter protesters are violent and lawless—works its way into the conservative media ecosystem and up to the White House.

"[16] An analysis by Politico and the Institute for Strategic Dialogue on media in the lead-up to the 2020 presidential election in the United States found that the most prominent figures claiming violence by Black Lives Matter and claiming fraudulent ballots, James O'Keefe and Turning Point USA, were posted by The Post Millennial.

[17] In July 2020, The Daily Beast exposed an online network pushing United Arab Emirates propaganda against Qatar, Turkey, and Iran using op-eds placed in news outlets using fictitious authors.

"[24] In August 2021, amid the COVID-19 pandemic, The Post Millennial ran a story implying that unvaccinated high school students in the Eatonville, Washington public school system were forced to wear ankle monitors; in fact, the devices were proximity monitors that do not track location, were worn by both vaccinated and unvaccinated students (as well as staff), and were required only while participating in high and moderate contact indoor sports.