5 votes
Accepted

The meaning of "The number of Followers of a tag"

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 ...
4 votes
Accepted

Pink questions in the list

The questions which are in different color are those ones, which have one of your watched tags. (This feature used to be called favorited tags, but it was later renamed.) From What do “watched tags” ...
4 votes
Accepted

How do I follow a tag on MathOverflow?

There's a feature 'Filtered Questions' on stackexchange.com. Just go to https://stackexchange.com/filters/new and fill out the form: That works for email; if you're more into RSS feeds, there is a ...
  • 2,691
3 votes
Accepted

Tag subscriptions and "Watch tag"

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 ...
3 votes

Pink questions in the list

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.

Only top scored, non community-wiki answers of a minimum length are eligible