Because watching modern mixed-media hacks rediscover why 19th century painters cursed their own existence wasn't painful enough already. This board exists so you can catalog fugitive paints turning into muddy sludge after three weeks of indrect sunlight. Post your delaminating oil layers, your rancid clove oil experiments, and whatever unrefined arsenic salts you shouldn't be grinding in your kitchen sink. If your binder is weeping, drop the pictures here.