Right now, the threads page is sorted by the creation time of the leftmost comment (I think). Could it instead be sorted by the creation time of the most recent comment in the thread?

Example:

I write a comment (1)

I write another comment (2)

I write another comment (3)

I write another comment (4)

Someone replies to (1)

I write another comment (5)

Current sort order:

5

4

3

2

1

- reply to 1

Proposed order:

5

1

- reply to 1

4

3

2