Could be there option to make cooldown on "set spawn"? For multiplayer it's just kind of silly if you can change spawn many times and abuse it somehow. I would ideally want players to be able to only set spawn once per hour or once per few hours.
I followed it up with "fork" of this mod.
https://mods.factorio.com/mod/TimedSpawnControl
I will try to keep it simillar to this mod, whenever I have time to maintain it, but with setting to set cooldown.