At this point I'm starting to think they allow easy registrations for the hope of new users quickly, at the risk of spammers. I do know CAPTCHA/Security Questions can turn away potential users. But in this day in age it should be required and those users not interested in security may not be the best people to hold accounts for.
Enabling these features takes no time, and effort really, so I see no excuse. Kinda sad really. We already know these bots are scraping content to use in their data mining and further spamming of sites and phishing for data. Our user agreements already shed Planetside of any liability for security and legal issues with our forum posts, as well as stating they do not monitor any posts. Lol So maybe they're just sticking to those guns, and don't care.