I have a topic with hidden posts and several pages. Moderators can see the hidden posts but other users not. So moderator see 3 pages of posts and another users see only 2. When some user sends link to some post on page 2 for example he send a link with page number like this http:://forum/topic/page__st__20#entry1825833. When moderator go to that link he have another page because of hidden posts and cannot see the post. Same situation with links to quoted messages.