If you look in the headline Rumours & News forum you will see that the subject was posted at 21:10z yesterday. It currently runs to four pages. Has discussion on the subject been banned? No it wouldn't appear so!
Who is deleting posts? Well only two groups of people can do that. You can delete your own posts, and the moderators on these forums can also delete posts. If you didn't do it yourself, the process of deduction should provide the answer.