[kprobe]

Macs are not reliable 'beyond reasonable doubt' evidence. Routers typically show single mac for whole network; even if backdoor was implemented, you can change mac to a new address on nearly any hardware these days. It is however unlikely for the average user to have the necessary hardware (special nics) to hook two 'same mac' computers to a router.

That said backdoor could easily detect multiple instances of a game running on the same OS, send special packets based on hardware profile (i.e. simple hashing), which would be generally unique for each computer. Its also highly likely IP exemptions are on a watch list in general.

I'd say if they are implementing auto-detection with MAC addressing, its a lazy, but largely effective for average cases if they're OK with false positives; which, based on history, this server's admins seems to be, but it could be something else.

Without more data, its hard to say anything but reasonable conjecture on the technical side of things.

Either way boxing is determined based on behavior as it has to be caught in the act. This can also lead to false positives in cases of AFK and new players.

This leads to inconclusive evidence on the technical side. What we're left with is whether we believe the people's stories on either side of on the event.