The closing of these thread in Offtopic is specifically to avoid the breaking of Rule D.
For example, the celebrity thread would results in a bunch of one word posts, posts that don't explain anything about their meeting, etc etc. Therefor, it's just easier to close the thread at the start and save the trouble of having to delete a bunch of posts and warn a bunch of people.
It's very important that when you make a thread, you make it high-quality; see Moonshake's big red announcement. If you do make a question thread, which we are trying to get people to avoid, make sure it is a question that can't be simply answered in one word. Those are the types of threads that will end up getting closed.
But yeah, as Lazors said, those threads are all in ToriPrime, where people are having a ball. You can go ahead and suggest possible rule changes (other boards), but you have to also prove why it is worth having these types of rule changes and/or new board, since just a few months ago Offtopic was absolute shit. We do not want any board (or potential new board) to turn into the shit-flinging fest that Wibbles became.