Apparantly, when a thread is moved to a forum from which a member is restricted, any likes received there no longer count. Consistent with that, the alerts originating from the moved thread disappear. Likewise, the posts made in the moved thread no longer appear in the list of postings. However, the likes still appear in the "Likes Recived" list, which is inconsistent behavior (i.e. either the likes should still count or they should disappear from the "Likes Received" list).