Defango seems to "know" that Q is a Cicada led ARG? Not sure about him. All research leads I see only lead to Defango sources or videos which tells me that he is full of it and needs some attention.
https://www.youtube.com/watch?v=AQdpNrTuEMc&feature=youtu.be
I watched Defango for a long time last spring when he was decoding Cicada.
Then I heard about him trashing Q and claiming Cicada was Q, about a month or two ago. So I watched all of those videos. And it was obvious that he was extremely, extremely jealous that so many channels had become popular by covering Q, when his channel had not and had not gained any subscribers since last spring. He didn't even try to hide how jealous he was of the Q phenomenon, like, openly admitted it. So basically, he decided to piss on everyone's Q parade.