If it's 100% vanilla, RIP spawn, RIP new players who will get spawnkilled, RIP people who don't use hacks (as there would be no anti cheat)
Imagine playing Survival on singleplayer, but change the "single" to "multi" Basically you're playing with other people and it's like survival but with no shop, no kits, no spawn, nothing. Only random spawnpoints, the Essentials commands, anti-cheat, stuff like that.
Perfect place for hackers, griefers, etc. I know it's not a bad idea, but still... no support, sorry. (Could you please give MORE information? Thanks)
Vanilla is no plugins, mods, or anything. It's just normal minecraft without mods and added players. Support.
No support, this is what will happen without mods and plugins: spawn can be destroyed, pvp is enabled anywhere, No ranks, no warps, no factions or clans, anyone could /tp, no kits, No money...