I have a problem with users automatically being added to other blogs (sub-sites) on their network. Upon visiting a sub-site, the user gets assigned a "participant" role. This is then shown in their "My Sites" drop down in their Admin bar.
I have Buddypress installed of course, you would know this from the "participant" role, which doesn't exist in a WordPress installation with Buddypress absent.
In the forum "settings", there is a check box with this next to it:
Automatically assign default role to new, registered users upon visiting the site.
I have toggled this off and on several times, in the hope that it would fix my problem. It doesn't.
Please help: why is my multi-site installation still adding users ("participants") to every sub-site they visit?