Can I be brutally honest here? You memo guys lost it somewhat when you added the modals. I understand how such features lead to more experience however they do not add to the UX
What's issue are you having with modals? It's basically the same as before except without requiring a page reload.
I guess I just thought it felt cluttered and confusing kind of, especially on mobile and brought in at the same time as the new flatter hierarchy. Excuse me, you are doing a great job.
OK, this is weird, but on desktop if I click the reply to open the reply area, then click sort of above the word Message in the empty spot, a modal comes up with the replies.
Oh, guess it's same on mobile as desktop. Talking about modals for replies, for a time if was a number on the reply button clicking it brought replies up in modal. Not now though.