So I got my wife to help me test a few things on site. She went to my KB and selected the type and all and wrote her KB test article. On Submit, we got this:

The reason why is I have it set in the ACP to notify member ID#2, admin, on a submission to the KB as depicted in the following screenshots.

I have yet to try Email notification or no notification. I am going to go try now and have my wife resubmit another test article.
So I got my wife to help me test a few things on site. She went to my KB and selected the type and all and wrote her KB test article. On Submit, we got this:
The reason why is I have it set in the ACP to notify member ID#2, admin, on a submission to the KB as depicted in the following screenshots.
I have yet to try Email notification or no notification. I am going to go try now and have my wife resubmit another test article.