I know the level of talk on Vulkan might not warrant it's own forum by your standards, but this combined forum is causing real issues with google results and I think that alone means we need split forums.
I've noticed that having a group forum is an issue when trying to google Vulkan specific issues with general graphics terms. OpenGL results frequently come up because this forum is now called "OpenGL and Vulkan", when you really only care about Vulkan results. This problem will only get worse as there is more content from both APIs.
I don't think it hurts to have it as a separate forum and I think the time saved for all the people trying to learn Vulkan is worth it.
Thanks,
David