The Admin forum is locked so only Admin/ Mods can post there... However, anyone can REPLY to a post... and as Purplerain said, they seek out the first available forum, they would just move on to the next forum...
were at a point with phpBB (the software used on this forum) where its just at the end of its lifes run.. the creators are working on a newer version (phpbb3) aka Olympius, so it seems the Modders are starting to takle making phpbb3 Modifications, so the phpbb2 stuff (version we use) is lacking aftermarket support right now.
and phpbb3 has been around many many years, so the bots have adapted very very well and have found many ways aroudn any features that are added..
However, your feed back is welcomed, i dnot want you to think that were just blowing by your suggestion.. its just not worth teh hassle to completly lock down the forum, cause it'll just be posted in the general forum next time