User blog comment:BertH/Introducing Announcements, a new way to notify your community/@comment-9605025-20180717200419/@comment-5275700-20180717202459

1. We do plan to remove the highlight function from Forum, and to fully disable Community Messages. So there are not three tools serving the same purpose. No specific dates for those changes though.

2. If you've got multiple things to announce at one time, the best solution is a "news" page or a blog post or something like that. That allows users to assess all of it and find the items they're interested in.

3. Thank you for reporting this! We've filed a bug and we'll get that fixed for IE11 users.