1.15.1 Semi-Vanilla Spigot Minecraft survival server, running the Lands protection mod, and gfly. I recommend not building close to spawn, and learning to use the lands plugin to protect your stuff.
As of Feb 16, 2020 I do have intermittent worldedit snapshots to undo grief caused by other players (or just mistakes). The snapshots take space though, so I'll probably only occasionally take them and will keep a limited sliding window of undos, so if you don't play for months I likely won't be able to undo really old damage.
The currency of the server is charcoal, I lowered the costs of lands from thousands to more reasonable 'charcoal based economy' levels so you only need a reasonable amount to claim or teleport. Feedback is welcome on balancing the cost.
I've recently enabled dynmap, it will be critically important to use lands since you can't count on hiding now. Message me if you need claim blocks or permissions to get started until I can automate that part.