I'm getting this CloudFlare DDoS Protection screen every 3-5 minutes or so. Or when I try & post. It's never this frequent... Hopefully it's not just me.
Next time this happens just press the back button twice and just send the pm or post the post. (You won't have to type it over)
This may be annoying for the time being OP but in the long run it is better then the site being held.