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You can find links to some basic info on favorites here, specifically this post is rather detailed: How do favorite questions work? This feature request has been posted on main meta a few years ago: Add a page explaining the favorites feature to the Help Center. Existence of this feature request suggests that you are probably not the only person who ...


8

You went to "favorites" tab. Now (not necessary, but just to see what post was last active) select "Activity" and then click the date (sssssh, it is the secret, for this reason the timestamp looks unclickable ;) ). If you are taken to the question, then something was happened to the question. Go to the revisions (if no "edited X time ago" displayed, ...


4

The questions which are in different color are those ones, which have one of your favorite tags. From What do “favorite tags” and “ignored tags” do?: Questions with these tags become highlighted on the front page. Questions with new activity are shown on stackexchange.com/filters. In the review queues, questions from these tags are shown to you ...


3

This is only partial answer, since I was unable to replicate the behavior you describe. (I do not see the "manage subscriptions" button. Possibly the reason that I do not get this button might be that I have set up a new filter subscription just now - to test what you are describing your question? Or perhaps this works only for tags which have been ...


3

The number of followers is shown in the tooltip which is displayed when you hover over a tag. As already explained in comments, this is number of users who have the tag among their favorite tags plus number of users who have email subscription to new question in the tag. For more details see: What is meant by tag follower versus the “x number” that appears ...


2

Whenever you happen to have the privilege to see deleted questions or answers, they are given a reddish background to differentiate them from the rest.


1

I first check when the question was last edited. Then I check the latest answers -- at the beginning of answers there are three tabs: |Active| |Oldest| |Votes|. Selecting |Active| puts the latest on top.


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