From the explanation on the quilt gallery page:
Hope you enjoy this collection of our members' quilts. Click on a thumbnail below to view a larger version. The first comment under each picture contains the ID of the member that posted the quilt. If you click on the ID, you'll go to the member's profile page. There, you can quickly send the member a PM, or view all their posts.
And thanks for the question—I had never looked at that page. Love the rickrack border on that quilt.