Well, let's see, they have to buy ads on other websites, to get new traffic to replace the attrition. Ads cost.
And then there's the moderators, oh, wait, we already mentioned those.
Maybe it's like the NY Times, which ran into trouble recently when net worth declines started cutting into the entitlements of the 42 or so owners who live off the returns from investments?
I think it has to do with Vatileaks. They're trying to defend the indefensible, and that's always expensive. It would explain the "next 6 months" schpiel.