Bukkit

This page describes how to interpret the output given by DarkTrace.

The thresholds are very strict in nature and don't reflect different mining styles, furthermore you might have people mining iron ore that was placed by them and thus getting a close to zero ratio for stone vs. iron and similar. So having suspicious ratios would give a hint whom to have a closer look at, rather than showing directly whom to ban. Besides it can be efficient to use this together with notifications about breaking ore from other plugins like WorldGuards blacklist events and then check for what the player is doing and monitor the changing stats, if not too many people are mining at the same time.

If players are really mining and not placing and destroying ore blocks, then a ratio of stone vs. diamond of below 15 is clearly suspicious, some cave miners seem to have reached 15, but one cant be sure about such, values below 15 usually have been people using transparent texture packs and xray, below 10 usually is quite clearly xray.

The lightlevels can help to quickly find and check, combining well with a ore-break notifier like which WorldGuards black list events provide, so if someone new is breaking ores, one might quickly check their lightlevels or /su and if they appear dark (light level closer to zero) one should have a look. This gave me quick success several times, yet since 1.0.0 one can still see everything with high brightness, so some people mine in the dark which now seems a legitimate way.

Sometimes teams seem to divide into diamond miners and iron miners, but that is rather an intuitive guess.

More to be added ....