The reverse is also true, if someone has to say they are important, then they are likely not actually important.
Applying this to the QAnon 'motto' of 'Where we go one, we go all', I think you can conclude that if they have to say it, then it's not true. Most adherents are then, mostly, alone.
The feeling of community and belonging that these people get is obviously missing in their lives otherwise. That they find these feelings via image macros, chat boxes, and videos speaks to the depth of loss they feel in their lives.
It's not an issue of misinformation, but I think, loneliness.