This is more of a feature request than a question.
Stack Overflow is such an all-encompassing site for an extremely large quantity of technologies. Oftentimes, like myself, we choose to ignore many tags so that they are filtered out of our viewing pleasure.
With such a long list of ignored tags, it is a bit cumbersome to have to scroll all the way to the bottom to manually type in the tag to ignore (provided it is typed correctly).
My proposition is to have the mouse-over popup box of the tag to have the options to favorite the tag or ignore the tag so this automatically adds the tag to the respective list.
If this is already an option, then I apologize.