I think Discord has had a huge impact on Stack Overflow as there are many communities created for specific technologies, languages, frameworks, or topics, where most users can get answers from direct contributors or people who have the best industry knowledge on the topic in question.
Not to mention how beneficial it is for brands and products to create such closely-knit communities for their users. There's no need to Google things or ask on SO, as one can chat in real time and go back and forth for solutions with other users.
Not to mention unsearchable, poor discovery, a chat platform is not a replacement for message boards. SO is well suited to the Q&A format and Discord just isn’t.
On Discord? Really? My experience has been that if I don't know what the popular community discord is and what channels to search, I will simply not find an answer. For me, my Discord experience really suffers from Discord not being indexed by search engines.
Not to mention how beneficial it is for brands and products to create such closely-knit communities for their users. There's no need to Google things or ask on SO, as one can chat in real time and go back and forth for solutions with other users.