Well, the only thread I can think if you want to ask the staff in general is in the General Quick Questions thread. What did you want to ask btw? I think I could help you better if I knew what you wanted to ask. n__n
Also, which thread is gone? If you go to your profile and click the "statistics" bar, there's an area with "Find all threads created by Vaati Fulbuster" and it should show all the threads you made. It might have just been moved for being in the wrong forum is all. We don't delete threads here unless they're really bad, like troll threads.