Thanks for this new facility.
I took a quick look in Google and at time of posting this subdomain isnt indexed.
I looked to check for a robots.txt file and there isnt one.
I also noticed that the links in the profile section are rel=nofollow.
Would the nofollow tag be also on signature links?
We arent paying for this service, and its directly related to us providing questions or answers... so would that justify a do follow situation over suitable back links
Looking forward to your reply.