just to add.
seems at the current state of affairs, it's pretty anonymous to store or send/receive bitcoins to each other.
Purchasing stuff: problem is when you want to use it to purchase stuff, etc. Not exactly practical to use for payments since not that many vendors/businesses accept them. so it means converting it to cash.With vendors that do accept bitcoins as payment, there would be purchase records at their end and I think they're getting pressured to keep records of such purchases.
Exchanges: Same deal with exchanges. Records will be kept. If you transfer out cash/fiat to your bank acct, will large amts be reported or get noticed by the guvment? Some say it does. idk. So do you bite the bullet and pay the capital gains tax to play it safe? (just like you do with other commodities, investments, stock gains, etc)
Cash/bitcoin transactions: i hear the most anonymous way to be anonymous is to hook up locally thru localbitcoins, etc, and do cash transactions. But it's probably gonna be a pain in the arse for alot of folks to have to do this, not to mention cashing out a few thousand here, a few thousand there. Not gonna be 10k, 100k deals.
Why not just buy 10k worth of target/walmart/amazon gift cards and then live off them?