Pre-Trib Rapture or post-Trib?

I ran across a discussion just now on ChristianChat.com about whether the Lord will retrieve His followers before or after (or during) the Tribulation. The OP claims the AntiChrist will be large at work at the beginning of the Trib winning over many who believe in pre-Trib. But logically it would seem they would realize their deception after a certain amount of time when they realize they haven't risen to the clouds and are still on Earth with a more-than-man person. So they would have plenty of time to realize their deception before a post-Trib return of Christ.

So I think, even if this guy's right about post-Trib, those choose to believe in pre-Trib could safeguard themselves by studying the Bible heavily on the topic of the events surrounding Christ's return.

Agree? Thoughts?

Forgot to add the link to the discussion over at ChristianChat

ChristianChat.com - Rapture=false teaching