If you don't do this, your journal will most likely be rejected. The reasons for this step are two-fold. One, it's to "get to know" you a little bit and two, it's to see if you bothered to read the rules.
It's really not that hard. You can click to join and then send a PM. You can send a PM first and then ask to be added. The only way I'll add a blank or locked journal is if I've seen you commenting elsewhere.
If you got here before we went members only, but have a locked or blank journal, don't worry. You're cool.
If you've been recently rejected, just PM me (with something more substantial than "LEMME IN") and try again.