Well there are ways the admins can get the IDs to him, I mean they could track the IP and look at what IP logged into each account. And as for salvaging this stuff, well you could probably fix the whole comp by taking it in to a shop or something. And they may be able to save everything. And if that doesn't work, I'll hand money for a train.
And I think in cases like these Korrd, refunding the man should be done. People who deserve respect should be given what they have earned. Meaning, if someone like Missingno lose chars due to comp failure. You should reimburse them regardless! At least 100mil!