[TygerTyger]

Well if you check the other guy's method I linked to in the post above yours, his isn't too far off doing that.

The reason I left this one here (aside from the fact the search didn't pick it up until after I'd posted it :rolleyes) is because it's a quick-n-easy template-only edit and would still be useful for someone who wants to keep their posts out of the search engines which apparently some do.

I'm inclined to think that a global thread-switch would be what most people are after though, I think that a per-thread mod would have a more limited use. If not because what I personally would do is a make a forum section for "Secrets" or whyever people would want to hide their thread and just hide the section from Guests.