I've just discovered a problem with Discussions where a few of the discussions posts have lost their titles. And when I go to try to readd the titles, I get the "Something went wrong" error.
It's tough enough that I've just discovered that a few migrated images have been lost due to a recent image cleanup - hopefully they can be fixed when I restore those images and make them into redirects - but the problem with the missing Discussions titles is worse.
There used to be the ability to filter posts in Discussions (before Community Feeds) between all posts and followed posts only (as well as filtering by category, of course). See the top of File:Fallout-Discussions.jpg, just above 'Start a new discussion...' there's two tabs: 'All' and 'Following'.
By the way, will the upvote icon in Discussion activity feeds be updated to a heart?