I think Discourse’s quoting UX is brilliant. However, I do find the quote button a little unreliable. Sometimes when I click it, nothing happens (and occasionally the button itself doesn’t pop up). A member reported this today, and then another member confirmed it was an issue for her too. I’ve also seen the issue myself.
All three of us are on iOS devices.
Update: an android user just responded to say the problem is not limited to iOS devices
I will try to grab the logs or look for a pattern when it next occurs. In the meantime I’d be interested to know if others were experiencing this? My forum is never more than a few days behind the latest Discourse release.