Hell storage grief (why do people like to grief my maps)

[NetherOw]

[1] Members name.

[2] Report: what rule(s) they broke (quote them).

@system

Section 2 - Griefing

[3] Did this affect anyone (e.g. they were using their hacks in PvP)?
no, map already finished

[4] Evidence. (If this includes chat, Phase link one or more messages)

[5] Dimension: (if this is a server report).
build

[6] Roughly, the time (in UTC) the offence was made. (if this is a
server report)

[NetherOw]

jungle battle (map just besides that one) griefed too

[Big.Russ]

Could you give the results from using /pos at your map so I can find it easily and check who did it? I am not familiar with much in build but I can check it if you want.