Limiting new members is an excellent idea. We had a big inflow of new members in the last few weeks and found more than a few bugs that needed fixed. Hardfork, Hardfork ... Hardfork. Getting a pool of anxious new users ready to jump in and use the system after all the fixes are implemented makes good sense.

I would love to be able to see a daily total of the size of queue to join. Even better would be tallies of new sign-ups, invites issued and invites exercised on a daily basis. I don't have the skills for that, but maybe someone can figure out how to show us that information.