I find this website confusing.

I think the issue is that from the 3rd level of nesting (replies of replies of replies) the replies are not indented anymore, and instead attached to one level up.

Or Reddit, this is different I think. Also, last reply to a level is first (reverse ordered in time).

So the reply ends up above the original. At least on phones. You can see my test below.

Test Nest 1 (ok)

Test Nest 1 (ok)

Test nest 4 (unexpected)

It is above Nest 3 and un-indented (at least in my phone)

This should at least be below Nest 3 and indented.

Test nest 3

Test nest 2 (ok)