Yes.
Well.
I must admit trying to make something with a feature superset to discord in a week, while having a level of implementation knowledge that led to me struggling to create an echo server in 4 days, while most importantly not grasping the core concept of the jam, was perhaps a result of my hubris getting the better of me. I concede knowing it was a fool's errand anyway. Making an everything app, frontend, backend, protocols and all from scratch is lunacy given the circumstances. My second choice, IRC, although easy to extend, also probably shouldn't be used for it. Due to being a lightweight text messaging solution and little else.
Although...
If one did want to create a forum like experience using a modern ircv3 protocol, the capabilities already exist in the BATCH extension. Using basic tagging to separate threads and forums from each other, as well as potentially attachment links, and all you need is some client-side niceties to have the beginnings of a fo