I was quite happy they got this up and running as it's a nice handy thing to have.
One thing we need to bare in mind when answering questions by user who are using the free
joomla.com subdomain, is that that have no access over server setup or cannot install extensions. Therefore our ability to assist users will be fairly limited. If the question is regarding the actual usage of Joomla, then fair enough.
Also, when we see a question by a user who is using this free service, I would suggest checking the Tutorials section as their question may have already been answered.
Just incase, I have set up a free account on there:
Thought it could be used at some point. If any of your have any ideas for it, post below of if you would like an admin account on there, feel free to email me (lodder15[at]hotmail.co.uk) and I'll reply with your login details