Threads that get created in the Competitive section as a whole become pending threads that are either approved or deleted. Both of your threads got deleted. Threads with a single sentence are not ever going to get approved. I suggest looking at the existing leagues to see what has been approved. Typically, you need to have rules for challengers and leaders set up in the first post, in addition to policies, and it's helpful to have people who will actually be leaders already picked out. Starting a league is something that should be the result of time and planning, not just making a thread with a single sentence.