Last time I asked for this nobody seemed to care, but now there has been discussion about it threads all over the site. There is an appetite for it, so I think you should make one. I know at least 420,000 persons who would come back to the site if there was a space like that. We could reach an entirely new audience like the kind of hexbear, dread, leftoids, leftypol has a bad reputation among a lot of socialists and a board like this would change that perception. I seriously think it would get more people to join the website then you think. But even if it doesn't the people here want it.
I don't have any IT skills so I can't really help and I think I'm too busy to moderate anything rn but I could at least make some threads at the start to liven the place up a bit. Advertise it on bluesky or lemmygrad or hexbear or however the reddit clone works and also maybe tumblr or something.
Alternatively - rename siberia to 420chan for the time being, ban all pedophile adjacent threads.