If I had an ongoing investigation into someone suspected of tax evasion and suddenly the internet at large revealed his identity, I'd be sure to raid asap - Wright was probably not aware that the tax office was investigating him, but I'm sure that if he is Satoshi and sits on a million BTC, and his identity is revealed, I'd try and GTFO. Which wouldn't be in the tax office's interest.

Not sure if the above makes sense. The two are probably related.