Just wanted to see how people feel about players having access to the campaigns/modules in AL, or running through them a second (or third...) time with new characters.
As a rule, I prefer players not be familiar with the adventure material they're running through. And, indeed, I'll prefer not to play in a game if the DM is running an adventure I know.
That said, it can work - provided the players operate in good faith, it shouldn't spoil too much. And, anyway, a lot of the RPG experience comes not from the adventure but instead from the other players and what they do, which will inevitably be different.
(I tend to believe, also, that a well-designed adventure should offer plenty of routes through. In which case, playing it once only means you know
one of those routes. A well-designed adventure, then, should be open to re-play. But, of course, that theory isn't always reality, especially with short adventures.)
Incidentally, the most extreme case of this is actually happening in my group right now - we lots of players and several games running concurrently. In particular, we have two "Rise of the Runelords" campaigns running in parallel - and the guy who is GM of one of those campaigns is actually playing in the other.