I haven't forgotten about the following. Have you?
The question mark burned into the ground that Locke saw. Why would any Dharma person do that?
The pipes from that hatch that sent log reports nowhere. Was the Hatch stuff all a ruse?
The numbers. Why were they being broadcast from the island when Rousseau's ship crashed?
The quarantine. Ain't nobody sick.
The Blast door map. Why would a guy who worked for Dharma be trying to figure out where all the Dharma stations are located?
The Other's Pillar of Smoke. What was that? They seem pretty civilized now. Why burn things?
The Supply Drops. How can these happen but seasoned Helicopter pilots from the frieghter can't even fly near the island without crashing?
Disappering dead bodies. Jack's dad. Eko's brother. Kevin Inman.
Most of these questions come from season 2. Which I haven't forgotten. Have you?
Also, I would comment on last night's episode but my wife hasn't seen it yet. But I will say: DANG.