This isn't a bug so much as a not-yet completely implemented feature.
#NewTwitter knows what to do in this situation. #OldTwitter does not. A
logged out user is still on #OldTwitter.
@episod http://twitter.com/episod - Taylor Singletary - Twitter Developer
Advocate
On Sat, Feb 19, 2011 at 7:06
It seems one can reference any valid status by id using the following
URL formula *if* you are signed in to twitter.com:
http://twitter.com/#!/this_can_be_anything/statuses/38671791899684864
but this will lead to a sorry this page doesn't exist if you are not
logged in. This seems like strange