This is a section to hold the "Thank you" pages for aweber subscriptions. aweber redirects to these pages with a query string including ?name=. WordPress reserves name as a keyword, so by default WordPress will give a 404 Page Not Found for these pages. Therefore, I've made .htaccess rules to rewrite these urls to this aweber section, replacing ?name= by ?fullname=.
Therefore all aweber thank you pages must have a url like this:
aweber/thanks-<listname>