Firstly I'll move this topic to site and forum feedback as its about the site.
Secondly about private messages. Yes,unfortunately at the moment the private messaging function is open to restricted users who haven't been approved, so yes, spambots can send pms to users.
The best thing to do is tell myself or the other mods, letting us know the username of the offender, say by sending us a pm or email and we can see about getting them banned.
I will mention this to Richard and Sander, our actual webmasters and see if we can get some forum updates sorted, but in the mean time, just let myself or the other mods know where to throw the ban hammer and we'll be glad to give potential spambots the boot as per usual.
With our dreaming and singing, Ceaseless and sorrowless we! The glory about us clinging Of the glorious futures we see,
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)