@scott, @pupi1985, Yesterday this Q2A site was showing users 32.2k and today it shows 33.3k more than 1000 users registered in a day. Also 33k users dont seems real, I checked few user profile and they posted SPAM link in their profile. Please check newly registered users.
This issue I have seen on other Q2A site also. It happens even if recaptcha is enabled.
It is time to add extra screening/checks before registering new users. please think on this.