Around 4 cups a day. 2 in the morning, 2 at lunch,
I too like it black...like my soul...
edit: I think it's pretty funny how many people have said they don't like coffee, 'even when it's sweetened.' I loathe sweetened coffee, but I also think it belies the youth of the posters. It's like asking who likes a nice glass of bourbon, neat. I pretty much guarantee Younger people just don't have the palettes for it yet.
literally, your taste-bud composition changes over time and as you get older your palette becomes less adverse to flavors that are typically poisonous in nature (as your brain learns to overcome instinct). For example alkalines, bitters, are generally indicators of poisonous plants. I know I couldn't stand coffee when I started college, and now, a nice black cup of coffee from the local shop/roaster is a dream come true.