The content contained here is by no means exhaustive, and we encourage members to experiment with their account settings, as you will discover how they work. If you have questions about a function / feature, just raise a contact us topic, and a member of staff will help you.
An overview of each area:
Changing your above preferences after posting history does not change prior alert notification settings. Simply, because you can choose to watch one thread via email and everything else by alerts, it is personalized to you and your present tense settings. To change previous thread and forum alert history, you can manage them from your watched threads and watched forum pages.
You will see checkboxes beside each thread / forum. You can bulk manage content from the bottom right of those pages, to change everything to alerts, email, none or remove watching the content.