He is a businessman. He won't gain anything from buying this forum because he can't get the return unless someone donates the money for him just like this forum did at earlier days. This is just a forum to talk cryptocurrency including Bitcoin. Pretty sure theymos won't agree with this because it's alright as it is, look at Twitter it almost dies lol.
He's an incredible businessman, despite what users here might think of it, especially since he's in the limelight for Twitter right now. However, he's proven multiple times how good he's at making money. This forum is no different, if it was in the wrong hands, this place could be exploited hugely for generating revenue. Thankfully, we aren't subject to that, and it seems all decisions are considered carefully even when it comes to finances.
You don't hear of a forum or business if you want to call it that, opting to operate at a loss, because of the issue with advertisers, and not being able to verify whether they're safe or not. Which, is effectively what theymos has opted to do recently with the ad auctions being stopped. Alright, we have a big reserve, and if it depleted so much we didn't have anything, I'm sure it would be introduced. However, most businessman I see including Elon, get greedy, and I'm just thankful that hasn't been the case with the forum.