The 0.325BTC amount is for the entire month, and does not appear to pay all the forum's expenses. As I noted, the forum spent 56% of that on mod payments, and Loyce noted the forum accrued a liability to pay the treasurers 77% that. That means the forum spent 133% of ad revenue on expenses before hosting costs, which I imagine to be four figures /USD per month.
With the much higher Bitcoin exchange rate this year, I believe it would be making an assumption to think the BTC payment to treasurers would remain the same going forward. I find it a bit unlikely that this would be the case. I would even go as far as to propose an 80% reduction in the BTC amount paid to treasurers going forward and think that could be done by theymos without anyone involved having an issue.
Theymos has a history of wanting to keep transactions denominated in terms of bitcoin, rather than USD. He kept your treasurer agreement in place for years after the bitcoin price made the fee excessive. Theymos also cannot unilaterally change the terms of the treasurer agreement. If he wanted to reduce the fee paid to treasurers, he would need to get the treasurers to agree to a new rate, and risk that some may not agree, and be left with fewer treasurers