nah, i don't think it's bad >>>in moderation.<<< i stopped drinking coffee about 5 months ago because it was effecting my crohns, i feel a lot better not drinking coffee-suprisingly more energy. i drink tea like it's going out of style though, easily 15+ cups/day, although i don't drink any caffinated tea after 6pm, this doesn't effect my crohns at all.
--matt