[soult]

How is that helpful?

a) Every user of MtGox already received a message from MtGox directly telling them about the breach. His message did not add any new information at all.

b) He advertises for two direct competitor to MtGox, in once ase using what I assume is a referral link where he earns a comission for each trade.

c) He solicits donations for himself.

d) He does not give out his name and uses an invalid return address to hide his motifs.

e) He sent the message 6 times.