This website is the main place to discuss minecraft mods and addons, and soon it will all be archived. What will we do for modding discussions? I mean, there are many places that work, but the organization wouldn't be the same. Reddit's structure is nice, but I don't want to be searching for a separate subreddit just for a separate topic. That wouldn't even work with the category we are in now. I wouldn't like r/minecraftdiscussion.
Let's consider some other options. Someone might create another website that replicates the functions of this one, but it wouldn't feel the same. It still would be a viable option to someone requiring information about a topic. The domain that the forum is currently situated on is so well known and the website itself has historical value, one of the reasons it is so popular. I could program a forum system in PHP and other languages, but the trust and honor that the forum has couldn't be replicated by another website. How will one forum website be agreed upon by the majority of players of the game? If it is not well-known and used by most people, questions will be left unanswered, unviewed, those who even use it would start to dislike and distrust it for being a good website, and may leave it. Leave your opinion in the replies below, I know I wrote an essay about this topic, but being a member of this forum for years I felt it would be necessary to contribute to the discussion and to the archive for future readers to see. It would be great if this shutdown was decided against and cancelled, but I don't believe that would happen. This forum has been a great place for discussion, and I'll be sad when it goes down on June 16th, 2019.
- Planet Minecraft. Now, the PMC modding forums aren't as active as MCF's, but it's still an option that's available. A few modders have already transitioned over to using PMC once the news about the Minecraft Forums being archived was announced.
- The Feed the Beast subreddit. Even though you said that you don't really like how Reddit is structured (I don't either, especially for "serious" discussion), it's still there and used by modders regularly to promote and discuss mods.
- CurseForge. Nearly all modders use CurseForge to host their mods, but it also has a small forums section that a lot of people don't notice. It is a lot slower than MCF or PMC, but that's because everyone just uses those websites (or others, like the Discord servers that I mentioned). Hopefully, since MCF is being archived, we'll see a few more active users over on there.