While I agree with cx2, it would be nice if it were harder for spambots to create topics, sinse it does seem we get on average one or two each couple of days, which is more than we used to.
I'd not be in favour of a capture, sinse there are no reliable accessible ways around them (I tried solona and it just didn't work for me), and while I personally am fine with audio captures (torn city used them extensively), I am not entirely happy with the spam situation.
Either the register link needs moving again to the fartman page, or we need to ask a question.
What Kingdom of loathing forums did is hadve one of three or four randomly generating questions who's information was available on the main page while creating your character for the game, ---- something like "what is the prime stat of the seal clubber class"
Perhaps having these sorts of very obvious questions answers to which can only be find on the front of site, something like which is the section of the site where you can find cheats to games, or which word ending in d describes people with a visual imparement who can play audio games, or who is the news poster and moderator who's name ends in the letter K.
As long as the answer was obvious from what was said on the main page I don't think it'd cause visitors too much trouble even if english weren't theirfirst language, but it would be likely to baffle spambots.
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.)