It's been suggested a couple times in the past, just don't think it draws enough attention for it to have an active sub-forum
Just did a little searching in the Other Games and RPG/MMORPG sections and only see like 4-5 different topics.
To put into perspective, the Last Epoch section was just made a month ago, and there are hundreds of active topics since it's creation. Many with very recent activity.
I'll say yes it if ever becomes popular enough to warrant it's own section, though! Hope this helps