<offended>Who the hell is calling me a whitehat?</offended>
On a more serious note, if you're going to put a hat on me, it'd be some shade of grey, but sure as fuck not white.
Broke GG1 (orphaning other miners + timewarp to drive difficulty to minimum) and "broke" SC1 (53 or so oversized tx bloating the chain and slowing things down, inadvertently triggered a bug/lack-of-optimization inherited from bitcoin that crashed a few nodes by consuming ~4GB of diskspace).
While were at it, also found a node-crashing bug in bitcoins script interpreter in late '10 and crashed all testnet nodes.
As for the accusations of me attacking I0C ... no clue where those come from.
I0C broke because the joker who originally modified the retargeting fucked it up, and it flat out stopped working after 2 weeks.
Then a patch from me fixed it (well... "fixed"... just ripped out the broken mess and replaced it with a modified SC1 retargeting).
Long after it got relaunched and everyone lost interest in it again, bitparking i0c exchange got hit with a doublespend, but that wasn't me.
I don't think anyone clearly admitted to that, iirc BEX hinted at having something to do with it... wouldn't be too sure, he also bragged about several other things I know are not true.
So in case you haven't noticed yet, I tend to break things for fun, not profit