Hogg, 17, and many of his classmates have been outspoken about the need for stricter gun laws since they witnessed the massacre of 17 students and staff members at their Florida high school last week.
Now, though, some posts on social media claim their actions speaking to the media aren't what they seem, and the focus is on one student in particular. "I'm somebody that had to witness this and live through this". And I love it because it means what we are doing is working.
Meanwhile, the Broward County schools superintendent has confirmed that Hogg and the other students who have been vocal in the wake of the shooting are students at Douglas.
Some of the theories surrounding the student are a result of Hogg saying his father was an Federal Bureau of Investigation agent; some began because people believe he and others have been coached by gun control advocates; and some are a result of people believing the students are paid "crisis actors".
And it's not the only time the student newspaper placed Hogg at the school instead of chasing tragedies.
One of the two tweets "liked by Donald Trump, Jr".
The conspiracy video was at the top of YouTube's trending chart on Wednesday.
Hogg's video of the dispute went viral.
On Wednesday, a trending video on YouTube, titled "DAVID HOGG THE ACTOR." fed the conspiracy theory before the video was removed from the social media platform for "violating YouTube's policy on harassment and bullying". Hogg would later be interviewed as a survivor of the Stoneman school shooting and make numerous appearances on television.
Similar conspiracy theories targeted survivors of previous mass shootings, including the 2012 shooting at Sandy Hook Elementary School in CT.
"Worst news since their parents told them to get summer jobs", D'Souza tweeted.
Hogg appeared on CNN to deny the claims.
The wild allegations online have also taken on a more risky tone, she said. It says it is not possible to review each and every new post manually.
But evidence that supported those theories - like a supposed yearbook photo of Hogg in California - was debunked by fellow Stoneman Douglas High students on Twitter. They hark back to "a high-level narrative, which is the media is lying. and you can't trust anything you see".
"I'm under so much stress", she said describing her state a week after the shooting.