My lists of “Favorite Tags” and “Ignored Tags” are long and carefully crafted. How can I back them up just in case Stack Exchange would forget them?
The tag lists in the sidebar and on the Preferences page are text which can be selected and copied just like any paragraph of regular text. So:
(This can also be used for reordering and other modifications of lists, by editing the list in the text document. Tip: The edited list doesn't have to be on just one line.)