Due to the influx of spam bots (up to hundreds per day), we've re-enabled manual activation of user accounts.
If you register and your account is not activated within 24 hours, please either contact any of us or jump in to our IRC channel and ask for help.
And please, if you know anyone who runs spam bots of this sort, kindly paint their car pink for us.
--edit 14/03 --
You are able to log in to your account before it is activated, only your posting abilities are restricted. Registering for an event will automatically approve your account.