@ Black Apple - If you have made a report about a thread that you feel is in the wrong forum, and it has been hidden, that would indicate that the F Mod reviewing your report felt that the thread could remain where it is. If no action is taken, sometimes an explanation might be posted here for you and other times there might not be one left.
When it comes to the General Forum, probably at least half of the threads in there really could be placed in another forum. Whether they get moved, or not, is a judgement call made on a case by case basis, following our guidelines from Jagex and what it best for both the user and the forum.
The General Forum in particular, is often the first stop for a new forum user, and if the first page is filled with padlocks, from either closed or moved threads, (they all look the same to a new user) that can be quite off-putting and discourage them from even attempting to post.
Don't worry if a reported misplaced thread is not moved. If the report has been hidden, it has been looked at. You will have to trust that sometimes there are often more things being considered than just 'is the thread in the correct forum?"