When he was asked about it during his first term:
“’When reminded by a reporter for NBC News that the movement’s followers believe he is fighting to stop a satanic cult of pedophiles and cannibals, he asked: “Is that supposed to be a bad thing?’”
www.nbcnews.com/politics/white-house/trump-qanon-conspiracy-theory-suppose-be-bad-thing-n1237358
To answer your other question, see post #54.