The original idea was to substitute carousing for xp from treasure, but I also think the two work fine side by side. This way they can spice up the characters' life and gain 2 xp on each coin, or gain 1 xp and spend the coin for goods. This helps keep treasure in line with reasonably "hungry" amounts while letting characters level at a decent rate.
Below is the main table, showing maximum sp (or gp if that is your base currency) that can be spent in a week while doing that activity, receiving experience points on a one for one basis. The size of the settlement matters, and in particular philanthropy depends on the size of your faith's or race's community within the settlement, not the whole place. Time that must be spent during the week in that activity is also shown, and the bigger places give you more risk on the side effects tables, which is where you roll the dice shown. Click to enlarge...
And what would it be without the side effect tables:
Comments welcome as usual!