venul The issue Although I've enabled this option "Notify about every new post instead of only the last in a discussion", I don't get any web or email notifications for new posts and discussions! What could be the issue?
GreXXL venul the setting Notify about every new post instead of only the last in a discussion is only meaning that you will receive new notifications for every post made rather then just once until you revisit the discussion. This still depends on the notifications to fire in the first place (like Someone replies to one of my posts). By default there is no notification available for new discussions being made. For that you would need an extension like FoF Follow Tags.