Forums are great for being forums. Real-time instant messaging, voice chat, video chat, and screen sharing are all a very different use-case. They’re two entirely separate products, and comparing them is apples and oranges. People are looking to replace Discord with Discord-like services, because forums don’t fucking do what Discord does. The big problem (and the reason everyone seems to compare the two) is because Discord started eating forums, as companies realized it was easier to create a Discord server instead of creating (and hosting, and maintaining) a support forum.