Disclaimer: I had to lookup to see what QAnon was. Maybe there was more to the group other than conspiracy theories but theories are only that until supporting evidence is uncovered. How many scientific theories were just that until proven?
Also while theories political in nature are most likely believed by those they benefit the same but opposite holds true for those who would not like them to be true.
Allowing someone like Facebook to be an ‘unbiased’ ‘arbiter of truth’ is laughable.