No, we don't. They're different things.
I think they are the same, but I can understand it can read as if I mean something different.
Members who are used to social media interfaces, using a forum website through a small screen mobile device and thus seeing/noticing limited information. Some come to a page from Google making them oblivious to the forum structure. They will just post to whatever thread they are in, as they cant even see the thread topic. They only see a reply box and a bit of the last post. Maybe a very collapsed breadcrumb which essentially gives no information in XF1. Here is what mobile users with resolution 320x480 see they see if they are taken to the end of a thread:
Or post a new thread to the first forum you have, because that's the only forum they see.
Here is what the same user sees in landscape position:
Mobile users do not scroll. They swipe down. But touching the forum node will open it.
If your top positioned forum can be posted to then thats where you will get a lot of threads from mobile users.
A global new thread button is a popular addition to forums as this will guide mobile users to the correct forum node.
A similar threads function can also help prevent users posting a duplicate thread.
A more clearly visible thread topic and breadcrumb near the reply box can help prevent users from posting to the wrong thread.
I don't think such functionality changes a forum into Facebook. I know such functions are limited in scope but at least these help. There are probably better suggestions in regard to XF2 interface that can be made to address the problem.
I certainly don't want to turn XF into a social media setup. But this is a problem that I hope to find a solution to somehow, as it doesn't look like it will blow over.
The XF2 screens indeed do not look like this has been addressed yet.