@lukecarbis So, this function checks if the general site access setting is disabled, and if so returns true to disable admin access. What I'm looking to do is reuse this same pattern in extensions. So, for instance, in an extension I create a filter called `wp_stream_<extension>_disable_admin_access`. 

If we made this method static, I could just `add_filter( 'wp_stream_<extension>_disable_admin_access', array( 'WP_Stream_Network', 'disable_admin_access' );` and the check on if general site access is taken care of. Otherwise I'd have to duplicate this code, which isn't a huge deal but still isn't the best that it could be.

Does that explain my idea better?