unboundshadow-deactivated201309 asked: What is up with the "blood cookies" ? They have only made me counter productive. I enjoyed the bonuses that the golden cookies give but now I only lose cookies from these. Even if you don't want to fix this at least explain how they work.
They have a variety of effects; the most common ones are rather bad, but the few good ones are very good. There’s probably an article on the wiki about them by now, if you want the exact details