I think this needs to be said, and pardon how harsh this may come across, because I've been holding this in for years but it's to the point that I think it needs to be said, but this is an utterly ridiculous mindset.
Ant, You need to take a break. What you're doing right now is completely ruining your health and mentality. Staying on the internet for as long as you do - Which is MUCH more than your average person, and I'd go as far as to say way above even the higher percentile, will end up literally killing you in the long run.
I can literally send you multiple studies of the negative side-effects it has, and how this sort of mentality will leave you emotionally dead and depressed when you're looking back when you're much older.
You can better this by doing A) Taking a day or so off each week, Not doing ANYTHING that involves being on this wiki or extended period on the internet. Or B) Take a long period off while not doing anything involving this wiki or much of the internet.
The problem that you have is that you try to do B, but you end up not even really taking a break whatsoever. No human needs to do this, and this paranoia that compels you to always come back, you need to get rid of it. Honestly. You formed a structure of Administrators and sub-categories for people taking care of a particular thing of the wiki. This is more than enough to take care of the wiki for you to take a week completely off, but for some reason, you act like if you leave everything is going to fall apart (You admitted this yourself at one point, don't know if you changed this reasoning.)
Point is, that's obviously not going to happen, and it makes you appear as if you don't really trust the very people you put in place to do the job without you. (But again, this point only applies if you have kept that view.)
"No need to be aggresive about this, Overlord. And the alcoholic comparison is hardly a fair one."
It really is a fair one. He typically says he'll work a lot less, but most times he works almost the same amount of time as he normally does.
"But after all this time, and after all of the differing opinions and pieces of advice he's gotten, he knows what's best for himself far better than any of us do. "
Maybe he's in the upmost rare exceptions where this doesn't really bother his health, but I don't think he's in that category - It's clear this is affecting his health negatively. And if so, he might not actually know what's best for himself, although he probably does know what's best for himself, but he is not willing to get himself it.
"Yes. Half regular worktime is fine, and sufficient for me to get a break. I have done this several times before. "
Ant, you aren't thinking long-term. Keep this up and this will, and I almost guarantee you from experience from seeing others do and think the same, end up leaving you a hollow shell of when you first started. This is not healthy for you no matter how you put it, and half the regular time is still the average workload for an employee - So this isn't going to be helping you in any long-term view.
If you want to continue like this, then so be it. But if you really want to truly better what will most likely happen to you if you don't change, you need to take this advice.