It seems the discussions don't seem too interesting to me. Does the source code even work on discussions? I doubt that new feature is any better than the current forums. The forums now are more easier to navigate and easier to post messages and you can highlight them if needed. Discussions lack all these so I'm kinda against the idea to fully replace forums with discussions.
As for the concerns about WikiText + highlighting, these are planned to be added in later updates by FANDOM. FANDOM is working hard to bring these two tools to Discussions and they're trying their best to do so.
I also seriously dislike voting in general, but also discussions; they confuse me a lot of times. And may I ask, are you not from America?!?, cause you spelled "realize as "realise"; I kind of understand it but not really.