I also see the Cauldron is being pushed in the quests now. You have to donate goods in the cauldron to get witch points (so after drinking the cups), to complete the quest. And it's an 'alternative' to the Scout Province quest, so your choice is either to increase overscouting, or increase the cost for witch points, which will never get a reset to lower cost. Similar to buy kp. If it were like the wholesaler, with a reset in costs every 24h, it wouldn't bother me so much. But this is yet again stimulating us to negatively affect our daily gameplay by forcing us to take steps that increase costs indefinitely.
It might be a low cost to begin with, but the thing is, it doesn't end. It gets pushed during events now, the amount of events seems to keep being increased, so it's just pushing you to make your game more costly again and again. I don't like it.