Post 31265 and Post 31267 are working fine, but https://area51.meta.stackexchange.com/questions/31266 leads nowhere. I have earned enough rep to see deleted posts, and I do see them all the time, but not this time. What happened to post 31266?
You need 10,000 reputation to see deleted posts (with some exceptions, such as your own deleted posts, or deleted questions you've answered; the full list is documented on Meta Stack Exchange). Area 51 Discussions has the same privilege level as normal sites even though Area 51 uses a different one.
So the post was deleted, just like what happens to many others on the site. I do happen to have some information about it, because it was logged in a script of mine; it was about a now deleted proposal Android APP Development.