Reddit execs don't care when people post like this. They aren't browsing the sub, all they see is user engagement is back up and that's a win. They can sell that to advertisers as a win. If you showed them the page they'd think it's weird but they probably wouldn't know it have ever been any different.
The only win to be had with the sub re-opening is to post nothing at all.
There's no way he's doing that much work. Even if that was the only message he sent that day, there's no way he's doing that much work.