I hate it when I miss a closed thread. Like when someone is being a total douche and it'd be awesome to tell them where to go. Although I've noticed a few threads that were closed with no explanation given, then re-opened later on... again with no explanation given.

Curious: Do explanations have to be given when a thread gets closed?

Also there isn't a way of knowing WHO closed the thread, so you can't PM and say "Hey, what's up?" with it either. I always figured that PMs were the way to go, rather than posting a "Hey, why did this thread get closed down?" topic.