> I am yet to hear people call caffeine effects "ill effects". People and their sociocultural biases, uh?

Coffee has well known ill-effects, I think every coffee drinker at one point have drank too much and felt them themselves. Apparently such a big topic that it isn't just a section of the Caffeine page, it has it's very own Wikipedia page! https://en.wikipedia.org/wiki/Caffeine_toxicity