Shameless plug: The format (and the tool) has been used with great success in Veloren, an Open Source Voxel MMORPG written in rust (https://www.veloren.net/). The artist team has made great assets for the game and landscapes for the release parties.
Your should check out the project, it is really cool.
(Disclaimer: I'm part of the mod team.)
My items were still there (nice!) but I was not dealing anywhere near as much damage as I expected. Maybe there was power creep? And more concerning, all NPCs attacked me on sight, shouting "murderer", and I have no idea why. I tried asking in chat, which was surprisingly international, but got no answers. The manual doesn't explain any aspect of the game world either.
I guess that's the danger of MMORPGs in constant development. It's hard to integrate existing characters and guides with new behavior.
Also, I'm thoroughly impressed with the new UI and reflection rendering. It's coming along really nicely.