The bots seem to of died down from the constant banning of them and of their IP. I'll continue to monitor this and eventually disable the approval of signing up in the upcoming days. Sorry for the inconvience.
Recently we've been getting hit with a large sum of spam bots. Due to this I've enabled approval before posting. So until the numbers drop the approval will remain. However don't worry as I check daily, once I do my daily check it's very likely you'll be approved, unless for some reason you're connected to a spam bot, then ha.