There are some users whose responses I follow religiously (e.g. gowers and Terry Tao). Even if they are answering a question in a subject far from my own, I will read their response because I know it will have "big picture" gems of wisdom that are worth reading. It would be nice have a feature where we can mark certain users as favorites, then have a certain page which lists all their recent questions and answers.

This would be an analogue of the Interesting Tags feature, only for users instead of questions. Contrarily, there should not be a "hated users" feature, as that would be detrimental to the community.