The "Post New Thread" Button doesn't work in Matchmaking or in Off-Topic at the top of the page. The reason seems to be that these two sections don't have any subsections. Every section with subsections has a working button. Just some quick info for @[GM]Gourdy.
Maybe that's the reason why a lot of people have been posting off topic recently in general discussion.
Already noticed this on my phone earlier today when I wanted to post the Forum Titles thread in off-topic. Thought it was my phone not responding.
Hey! I've got confirmation it's being worked on. For the time being, for Match Planning and Off Topic, please use the "Post a New Thread" button at the bottom of those two forums. Thanks!