[Feature] 'signupcd' setting for new users who come from a recent IP address.

[Uricorn]

signupcd: 0, // How many miliseconds the user cannot do certain things after they sign up.

signupcd is great, but the option to tie it together with an IP address would make it so it's less likely to affect legitimate users.

You could also make the restrictions more strict if they meet various criteria, such as how many users from the same IP signed up recently, or if a user from that IP was recently banned.

[Uricorn]

Can be tied into #33