Reputation may be viewed "by post" or "by time" (or "graph"):
When viewing the reputation "by post", multiple activity per post is expandable:
However, this is not the case when viewing reputation "by time":
Why is this? I would think the format is easy to manage since the hook is on the post, which makes grouping an intuitive option. However, what do you group under when it comes to time? Has there been some consideration to accommodate some time-wise grouping? Or perhaps just leaving the reputation expanded?