User blog comment:Cristina7/Introducing Discussions, a New Platform For Engaging Your Community/@comment-2061246-20161006182028/@comment-5275700-20161006201227

1. A filter/sort for posts with the most recent replies is definitely missing, and right now we're looking at which sorts are going to be the most useful. Thanks for the feedback, and when things change please be sure to let us know how it works for you.

2. In the past few months we've resolved some issues where local IP blocks were not always effective, so hopefully there's been some decline in this? IP blocking mobile users is a little more difficult, of course, since their IPs can change. We're also exploring some other possibilities in this area. Please report (and encourage your admins to report) persistent trolls via Special:Contact. Staff can help and we'd also like to see the examples as we do further development.