Yep, lock this before the kids get their feelings hurt.
[Scene from Ghostbusters]
"Excuse me, this is private property."

"Lock this, lock this whole thread"

"I'm warning you. Locking this thread will be extremely hazardous"

"No, I'm telling "you" what's hazardous, you have about a half dozen forum violations, now either you lock this thread, or we'll lock it for you."

"Try to imagine, this a highly venomous, toxic containment system. Simply locking it will be like dropping a bomb on the forum."
... anyway, you get the idea.
