Back when I was a Bible-Believing Christian(TM), I was scared to death that I was going to hell because on some level I knew there was a part of me that didn't believe it. As soon as I learned of Pascal's Wager, I was convinced that I could use it to prove to myself that I truly believed. Basically, I used Pascal's Wager as a means of arriving at that belief and quashing that nagging voice. Not the disbelief one, the I'm going to hell one. Pascal's Wager kept me hanging onto my Christian faith long after I stopped actively practicing.
The moment I stopped and examined Pascal's Wager, I realized how flimsy it was. So I stopped using it and decided to finally be honest about what I believe, and declared myself agnostic. But at face value, it's pretty appealing to anyone who already believes, and not necessarily easy to deconstruct on command unless you've already heard about it.
Edited by bernerbits, : No reason given.