Board Thread:General Discussion/@comment-43596541-20200205202403/@comment-9605025-20200207000125

If that is indeed what you have heard/read, then I can understand where your view of the situation is coming from. However, I have participated in multiple discussions about the removal of threaded discussion features and what other staff have said is that Forum is being removed first with comments and message walls to follow at later dates once the respective replacements are ready. If you haven't done so already, I would suggest giving this thread a read.

Regarding subscribing to page tags, that is an integrating idea. Perhaps you should suggest that to them as a feature to add to Discussions. However, I doubt they will make a way to embed lists of Discussions threads at the bottom of articles. That would probably require them to make Discussions more closely integrated with MediaWiki; something which they have expressed little interest in (and in some cases even seem to be against).