Spam and abuse protection

Several improvements help keep your instance free of spam accounts.

• Spam user denial. Accounts flagged as spam are automatically prevented from creating content or sending invitations.
• reCAPTCHA support. Instance admins can enable reCAPTCHA on the sign-up form to block automated account creation.
• Content locale detection. The system now detects the language of user-generated content, helping moderators identify accounts that may not be legitimate.