It does have captcha at reg, I just used a thro away email to try.
I think this is being done as a campaign, remember Moobs/Arty was pretty sophisticated at all this last time. Do not underestimate the pleasure people get from this.
There is a lot of bitterness or just for fun, but 5 people sitting at a desk all day with IP blocks and old PC's can do a lot of damage with some scripts.
I see it as Moobs just appeared yesterday and joked about the IP ban that it is all a highly amusing joke and people are rising to it, so he will then keep it up with Wexboy on Twitter, perfect, they have just got everybody upset again.
Who is pretty switched on in terms of IT within this group, I know there are some IT types. I have asked a person close to Fishy to try and get permission for somebody UK based to take control of the issue and potentially do some interesting trace or bot watching if anybody is up for it. It's far outside my capability.