You should probably add more include patterns for the other stacks.
If you use:
// @match *://*.askubuntu.com/election*
// @match *://*.mathoverflow.net/election*
// @match *://*.serverfault.com/election*
// @match *://*.stackapps.com/election*
// @match *://*.stackexchange.com/election*
// @match *://*.stackoverflow.com/election*
// @match *://*.superuser.com/election*
instead of those 2 @includes, in the script; it will work for all SE sites -- like Information Security, for example.
