I'll leave it to AnthonyCrea to give you all the reasons to use BotScout. I think its enough that reCAPTCHA may be compromised and stopforumspam was unavailable for a period of time. Instructions: 1. Get API key: http://www.botscout.com/getkey.htm 2. Download xFBotScout.php 3. Edit appropriate values: $APIKEY = '';$ALERT_EMAIL = 'firstname.lastname@example.org'; $ALERT_FROM = 'BotScout@your-domain.com';4. Upload to INSTALL_DIR/library/XenForo 5. From your ACP, create a new phrase called BotScout_Alert with whatever biatch slappin' text you want. No human being will ever see it. Mine is: ALERT: SPAMbot Detection has been activated. User will not be registered. 6. Edit INSTALL_DIR/library/XenForo/ControllerPublic/Register.php: Find PHP: $writer->bulkSet($data); Add After: PHP: ////////////////////////////////////////////////////// BotScout.com "BotBuster" check include(FULL_PATH_INSTALL_DIR/library/XenForo/xFBotScout.php');////////////////////////////////////////////////////[php]By FULL_PATH_INSTALL_DIR, I mean the full directory path, like /home/username/public_html/community, not the URL.Done.I know you guys still like screenshots, so here is the screen no human being should ever see.