(please tell me if this was already posted, because i searched for this and didn’t see any results.)
I think the Developer Forum should have a way to sort by Unsolved posts, so posts that asked a question and by people who needed help, that don’t have a solution, because there are many posts, which aren’t solved, and it would help people whose posts never got answered, and for people who want to help answer their posts!
The solution system is an official Discourse plugin–you can make feature requests for it here: https://meta.discourse.org/c/plugin/solved.
Though, it seems this was already done? I wonder if it’s something you can do now or if we need to update it…
EDIT: Live updating this post–it seems we do have the latest plugin installed (I checked our locale and we have a text string introduced by this PR).
EDIT 2:
cc @Hooksmith, can we enable this? 
Looks like it has been enabled. You can now sort by solved/unsolved.
No.
… Okay fine.
