Highlight mailing lists that are enabled in the subscription based preferences
Subscription based preferences screen is a little overwhelming. If we could highlight the lists that are enabled for email delivery green and highlight the lists that are disabled for email delivery will make the whole screen much more readable.
Another possible way would be to get rid of Enabled/Disabled and Yes/No and replace it with dynamic buttons that show status of that particular preference. These buttons can be activated and deactivated via click of course. UI will be much more cleaner that way.