When I visit the 'Following' tab on my profile, I can only see the date and time of the last activity but it doesn't show the date and time when I followed the post.
Users should be able to see the exact time when they followed a given post?
Arguments in favor of the feature request:
Consistency: Both following and voting1 are anonymous. However, one can view the time of their vote but they currently can't view the time of their "follow".
This could be useful for tracking the actions taken on a post before/after following it. And more importantly, detecting bugs. I recently noticed an edit on a question that I follow. I don't remember seeing that edit at the time I followed the question and I never received a notification about it. Without knowing exactly when I followed the post, I can't be sure whether this is a bug or I just didn't notice the edit before following the post.
1 This is true for both upvotes and downvotes. It's also true for close- and delete-votes (although they're considered flags internally, IIRC).