Yeah. I suppose the biggest flaw with LOST is the lack of questions from its characters. A lot of conflict might be lessened if someone occasionally demanded answers, rather than acting first, then expecting the answer. Sayid, for example, was having a nonviolent conversation with the Japanese guy, and could've pressed him more on why he should stick a knife in Locke before giving him a chance to speak. Or how about, who is this guy who looks like Locke? What's his story? etc..
On a more positive note: I really enjoy how the characters display seemingly genuine emotions (Ben explaining his actions, Claire crying to Kate), but because of the structure of the show, we still can't completely trust what's being shown, despite wanting to.
, wherein much Truth is written.