Well, sending user details over email is probably not a very good practice in general, but in case of this site I don't think it is that problematic. After all. it is a forum - we exchange thoughts, not goods or money.
With second mails from admin and that - I did't get a second email and was slightly irritated at first. I contacted Chip and it turned out that I was accepted, just didn't recieve a mail. Again, a minor annoyance if you ask me.
And welcome, Jennifer!