I found JSMC and it is called Just Simple Minecraft. It is a long term Java survival server for 16+ players.
The big idea is themed regions. You pick a direction and join a group. Then you build in that theme and help a world that keeps growing.
It is trust based survival. There are no teleports. There are no land claims. There are no locked chests. There is no pay to win. The server wants proper builds and steady progression instead of wiping all the time.
