Not sure what you mean by "replies don't work"? Do you mean, you aren't able to post ANY messages in the forums on mobile??
I didn't realize creating a new thread and replying, would use separate code for storage - so the mention code wasn't replicated in the new thread functionality. This has been fixed now (I just tested with a new thread and saw your mention, post).
Not sure why you wouldn't get the drop-down - is this in the "mobile" view?
I agree - this is something I noticed, myself.
This wouldn't have worked - are you also not seeing the drop-down? Were you in "mobile" when you posted this?
I am able to reply but not qoute and it has to be a quick reply at the bottom of the thread as the reply button has the same issue. Only requesting the desktop site alleviates the issues.
I was on mobile yes.
Everything in the above reply is my opinion, from my own perspective and not representative of reality outside of my own head!
-Android user, please be gentle with critique on my spelling.