Well we had a lot of spammers hit us in the last few hours (or maybe even just one spammer signing up over 400 times).
Sorry for any inconvenience caused. Thanks much to Izzy and Matthew for being on top of this, and the team at Market United.
We have already reacted, and have made our signup process far less computer friendly with a new "captcha" graphic. Unfortunately this means it is also a "little" less human friendly

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