Often users are forced into excessively looking back at posts to check if anything has changed.
Many times, we as users will have multiple tabs open in a browser. While some of the tabs may be older posts, it is often that a handful are both recent and of interest.
In order to monitor the progress of the recent and interesting tabs that are open, it is usually required to click on them every so often, and scroll all the way through to look for updates.
Each tab for each question already has a socket open (for reputation changes in the topbar, new comment loading, new answer loading, edit loading, etc.).
Each time a new event is received in the socket, if the tab is not focused, the title should be modified to include a number indicating the amount of changes. Chat and the active questions page already does this so the code for this feature already exists.
Events which trigger the +1 would be an added answer, an added comment, or an post-edit.
Upon inspection, I believe events which could trigger the +1 could be handled here, inside of one of the callbacks from the event emitter in StackExchange.realtime in the full.js script. It would be possible to add the callback inside of relevant case blocks, or perhaps in the l(t), y(t), or S(t) functions. Sorry for the minified code, this was all I have access to as an outsider :P
function s(e, t) {
var n = e + "-question-" + t;
a(n), U.addListener(n, function(e) {
var t = $.parseJSON(e);
if (t.acctid != StackExchange.options.user.accountId) switch (t.a) {
case "score":
m(t);
break;
case "comment-add":
l(t);
break;
case "answer-add":
y(t);
break;
case "accept":
c(t);
break;
case "unaccept":
c(t, !0);
break;
case "post-edit":
S(t)
}
})
}
Here is what it could look like
