These message boards are anonymous and those posting are called “anons”. There is no “QAnon”, only Q and anons, a distinction the media has not figured out. Not all anons are authentic, some are posting simply to muddy the waters, an advantage of being anonymous. The term “QAnon” allows all anonymous posters to be lumped together, the real ones and the disrupters, the media focusing only on what the fake anons post or claim.
Trump was technically correct denying not knowing about QAnon as it is a manufactured term. If I as a non-journalist can figure this out, surely Ms. Guthrie, Today Show co-anchor with a large research staff could have discerned this as well.