In his original post he said:

4: Related, breaking news: A popular Substack claims that COVID didn’t happen at all, and that both “lab leak” and “natural origins” are part of the higher-level conspiracy to distract people from the fact that there was never a virus in the first place.

He later edited the post to add:

I wonder if I could even more Substack likes if I one-upped them with a theory that lockdowns never even happened, and it was just one of those Berenstein Bear or Mandela Effect things where everyone has a false memory.

So now it's ironic, and therefore not harmful to spread the conspiracy theory to his large audience.