This is definitely a good idea, and it's been one of the tasks that we've had on our to-do list for some time. Basically the goal is to create a little "checklist" of sorts that is readable upon account creation, which is a reminder to read game rules, etc., and also a safeguard to warn against creating accounts with more than 16 characters, as has been stated in this thread.
It is something that only Raz can access, though, since it does have to do with front-end registration information, and so it's just a matter of him being able to find the time to sit down and set this up for us. He's often very busy between work and real life, and so sometimes it can take a bit of time for him to be able to find the time to set these things up (just as well, this isn't the only thing weighing his to-do list).
We do have plans in the works to do something very much like this, so thank you for the input. We think it's a very good idea, as well, and I'm sure it will save a great many users the stress and extra time in the long run.