Crimes would no longer be a thing
This commentator turned technical, which is what you want to speak about. We must admit that this one took us a while. The reply is arguing that if crimes were lawful for a full day, then they wouldn’t be considered crimes in the strict sense. Since everything would be allowed, you wouldn’t actually be breaking the law.
This is a common activity, and it’s obvious that the initial poster wasn’t particularly delighted by the response. Let’s just say that they used some foul language.