See? People are stupid and have a memory of a gold fish.
It's really not that confusing, it's rather easy to fallow really.
Unless someone devotes a lot of time and thought to LOST, the show can be very confusing and many details can be forgotten. TPTB didn't do the show any favors early on by re-running episodes as well as moving the schedule from February through May. Having the season interrupted/shortened by the writer's strike didn't help either.