I had been considering joining some sort of server (as if I needed an excuse for more building ;)), so I'm all for it. I had also been considering running one (been tinkering with a Docker image on and off as I don't want to install Wine, Steam, and co straight into the OS), though mostly to check out the differences between solo and dedicated because I'm not so sure my hardware could handle many people (but I have no idea how taxing the dedicated server is, so maybe it can host like a 10 slot server).
Server settings would need to be discussed, I imagine. Like PvP or no, decay timers on things (eg. buildings, thralls), what is considered acceptable (blocking off resources spawns can be real nasty if there's no raiding). I mean, I know you're all real gentlemenbarbarians, of course, who'd never even consider such a thing...buuuut
And, of course, which, if any, mods to run (which, I imagine, would depend on whether people are into PvP).
I'd argue the game is not really balanced around single player, that's why the server options are wide open when playing solo, especially increasing either gather rates or decreasing resource costs are fair game imho (I think I have costs set to 25%, didn't touch gather rates), for solo I'd also turn off decay (but I'm Bob the Builder, so yeah, I might be biased) and bump up the speed of thrall job interviews.
FWIW my current mod list (mostly the same from before):
There's a few others I've been eyeing, like Emberlight (adds a lot of crafting and RP stuff) or the Glass building mod but I'd prefer to mess with those in a sandbox (or on a server) as I don't want to break my save in case they turn out gamebreaking or just not useful.