Is your feature request related to a problem? Please describe.
Every so often I see posts that in short make very little sense :-)
Its only if I tap open them it is made clear that it is a reply to a thread. Most often it is a reply to themselves.

Describe the solution you'd like
Using the website there is a small text above the post "in reply to xxxxx" this would be a good indicator that the post is part of a thread.

Describe alternatives you've considered
Any visual indicator would probably suffice.