yes, i think so too.
in my other posts https://steemit.com/steemit/@knozaki2015/steemit-has-insane-numbers-check-this-out
i explained about the user growth

i like the fact, that the developers are wise enough to put a invite only in place to protect the platform.

it would be more harmful, if the platform went down for a couple of hours or days...

just a little datapoint, my friend put his name on the waiting list yesterday and was approved today!