Plainly, Xtratime has rules about different forums. You don't go trolling and bashing Inter in the Inter forum. You do that and you get blocked from there. You can bash Inter all you want in the Juve forum, or at least to the extent that the Juve moderators don't consider it worthless garbage posting.
I say this with no personal satisfaction but basically Xtratime members are classier individuals who have been shaped by the presence and interaction with rival fans and therefore post with more respect and consideration that did our gang recently.