If you intentionally hide your argument in a debate, it means you're being manipulative and disingenuous, preventing your opponent from being able to address specific points of disagreement.

The kid was absolutely a Reddit tier atheist and uncivil, which prevents good debate, but about his point of contention here, he's absolutely correct. Peterson is being even more contemptible than the Reddit atheist in debate ethics. It is impossible to have a debate when one side is concealing their true motives, arguments, and position. On any topic in a debate, everyone should be rightfully pissed at Peterson for pulling that manipulation.