Detect, Highlight, Log Traces to Support Tracking

[HoratioGamer]

Is your feature request related to a problem? Please describe. The problem is, 1.16 is coming, and with it, NewChunks will not work any more. Tracing 1.12.2 chunks in 1.16 will be easy in the nether, or over oceans, but new player activity after 1.16 will be impossible to track on the chunk level. There is other player activity that can be tracked in 1.12.2. The purpose would be stash hunting.

Describe the solution you'd like

Lets define the following as TRACES of player activity:

• drops
• out of biome / dimension blocks
• defects in construction of structures -- like netherrack in a nether brick construction
• the presence of 2x1 tunnels
• the presence of pillars or scaffolds
• the presence of cobblestone not related to lava and water.

Yes, people can see some of these things, but Lambda can detect it over the horizon, beyond the trees -- by making it an ESP-like highlight of traces, tracking players gets a lot easier.

If one had the ability to log the observation of traces and their coordinates, it would make possible the collection and compilation of player-activity traces that might be processed by an external program or correlated between players into an external database.

It would then be possible to back-process patterns of traces into waypoint.json files, ideally for something like JourneyMap, or its 1.16 replacement.

Describe alternatives you've considered At present there is no software that exports the coordinates of traces.

Additional context This could be the start of a beautiful friendship.