It's always the ones who preach most loudly against something that secretly enjoy it. "The lady doth protest too much, methinks."
Seriously now, do you think Null would've been so secretive and private about his own life if he actually had the tradthot girlfriend and the tradcath family and was living the lie? If Null was walking the talk, he would parade his wife and kids everywhere for all to see. Null is hiding in the shadows because he's painfully ashamed of admitting that he is cheerleading for a lifestyle and chasing after an ideal that has nothing to do with him or how he actually lives his life. Null really needs to stop approaching real life as a series of goals he has to unlock to be a worthwhile person.
Null was asked about his favourite Halloween costume and he... couldn't think of any examples (couldn't get himself to fit into one, even if he tried). He said that he likes Halloween less because of the costumes and more because of the atmosphere, "I love fall". Closet goth detected.
And here he says that he saw Halloween decorations even in Odesa in Ukraine: